style: fix CRLF line endings introduced by rebase

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

.codesight/CODESIGHT.md

@@ -2,8 +2,8 @@
 
 > **Stack:** raw-http | none | unknown | scala
 
-> 0 routes | 0 models | 0 components | 63 lib files | 1 env vars | 1 middleware
-> **Token savings:** this file is ~0 tokens. Without it, AI exploration would cost ~0 tokens. **Saves ~0 tokens per conversation.**
+> 0 routes | 0 models | 0 components | 35 lib files | 0 env vars | 0 middleware
+> **Token savings:** this file is ~3.700 tokens. Without it, AI exploration would cost ~18.200 tokens. **Saves ~14.500 tokens per conversation.**
 
 ---
 
@@ -47,130 +47,19 @@
   - class Square
   - function fromAlgebraic
   - function offset
-- `modules/api/src/main/scala/de/nowchess/api/bot/Bot.scala`
-  - class Bot
-  - function name
-  - function nextMove
-- `modules/api/src/main/scala/de/nowchess/api/dto/ErrorEventDto.scala` — class ErrorEventDto, function apply
-- `modules/api/src/main/scala/de/nowchess/api/dto/GameFullEventDto.scala` — class GameFullEventDto, function apply
-- `modules/api/src/main/scala/de/nowchess/api/dto/GameStateEventDto.scala` — class GameStateEventDto, function apply
 - `modules/api/src/main/scala/de/nowchess/api/game/GameContext.scala`
-  - function kingSquare
   - function withBoard
   - function withTurn
   - function withCastlingRights
   - function withEnPassantSquare
   - function withHalfMoveClock
-  - _...4 more_
+  - function withMove
+  - _...2 more_
 - `modules/api/src/main/scala/de/nowchess/api/player/PlayerInfo.scala` — class PlayerId, function apply
 - `modules/api/src/main/scala/de/nowchess/api/response/ApiResponse.scala`
   - class ApiResponse
   - function error
   - function totalPages
-- `modules/bot/python/nnue.py`
-  - function get_weights_dir: ()
-  - function get_data_dir: ()
-  - function list_checkpoints: ()
-  - function migrate_legacy_data: ()
-  - function show_header: ()
-  - function show_checkpoints_table: ()
-  - _...10 more_
-- `modules/bot/python/src/dataset.py`
-  - function get_datasets_dir: () -> Path
-  - function next_dataset_version: () -> int
-  - function list_datasets: () -> List[Tuple[int, Dict]]
-  - function load_dataset_metadata: (version) -> Optional[Dict]
-  - function save_dataset_metadata: (version, metadata) -> None
-  - function create_dataset: (version, labeled_jsonl_path, sources, stockfish_depth) -> Path
-  - _...4 more_
-- `modules/bot/python/src/export.py` — function export_to_nbai: (weights_file, output_file, trained_by, train_loss)
-- `modules/bot/python/src/generate.py` — function play_random_game_and_collect_positions: (output_file, total_positions, samples_per_game, min_move, max_move, num_workers)
-- `modules/bot/python/src/label.py` — function normalize_evaluation: (cp_value, method, scale), function label_positions_with_stockfish: (positions_file, output_file, stockfish_path, batch_size, depth, verbose, normalize, num_workers)
-- `modules/bot/python/src/lichess_importer.py` — function import_lichess_evals: (input_path, output_file, max_positions, min_depth, verbose) -> int
-- `modules/bot/python/src/tactical_positions_extractor.py`
-  - function download_and_extract_puzzle_db: (url, output_dir)
-  - function extract_puzzle_positions: (puzzle_csv, max_puzzles) -> Set[str]
-  - function load_positions_from_file: (file_path) -> Set[str]
-  - function merge_positions: (tactical, other, output_file)
-  - function extract_tactical_only: (puzzle_csv, output_file, max_puzzles) -> int
-  - function interactive_merge_positions: (puzzle_csv, output_file, max_puzzles)
-- `modules/bot/python/src/train.py`
-  - function fen_to_features: (fen)
-  - function find_next_version: (base_name)
-  - function save_metadata: (weights_file, metadata)
-  - function train_nnue: (data_file, output_file, epochs, batch_size, lr, checkpoint, stockfish_depth, use_versioning, early_stopping_patience, weight_decay, subsample_ratio, hidden_sizes)
-  - function burst_train: (data_file, output_file, duration_minutes, epochs_per_season, early_stopping_patience, batch_size, lr, initial_checkpoint, stockfish_depth, use_versioning, weight_decay, subsample_ratio, hidden_sizes)
-  - class NNUEDataset
-  - _...1 more_
-- `modules/bot/src/main/scala/de/nowchess/bot/BotController.scala`
-  - class BotController
-  - function getBot
-  - function listBots
-- `modules/bot/src/main/scala/de/nowchess/bot/BotMoveRepetition.scala`
-  - class BotMoveRepetition
-  - function blockedMoves
-  - function repeatedMove
-  - function filterAllowed
-- `modules/bot/src/main/scala/de/nowchess/bot/Config.scala` — class Config
-- `modules/bot/src/main/scala/de/nowchess/bot/ai/Evaluation.scala`
-  - class Evaluation
-  - class CHECKMATE_SCORE
-  - class DRAW_SCORE
-  - function evaluate
-  - function initAccumulator
-  - function copyAccumulator
-  - _...2 more_
-- `modules/bot/src/main/scala/de/nowchess/bot/bots/classic/EvaluationClassic.scala`
-  - class EvaluationClassic
-  - function evaluate
-  - function countRay
-- `modules/bot/src/main/scala/de/nowchess/bot/bots/nnue/EvaluationNNUE.scala` — class EvaluationNNUE, function evaluate
-- `modules/bot/src/main/scala/de/nowchess/bot/bots/nnue/NNUE.scala`
-  - class NNUE
-  - function initAccumulator
-  - function pushAccumulator
-  - function copyAccumulator
-  - function recomputeAccumulator
-  - function validateAccumulator
-  - _...4 more_
-- `modules/bot/src/main/scala/de/nowchess/bot/bots/nnue/NbaiLoader.scala`
-  - class NbaiLoader
-  - function load
-  - function loadDefault
-- `modules/bot/src/main/scala/de/nowchess/bot/bots/nnue/NbaiMigrator.scala` — class NbaiMigrator, function migrateFromBin
-- `modules/bot/src/main/scala/de/nowchess/bot/bots/nnue/NbaiModel.scala`
-  - function toJson
-  - class NbaiMetadata
-  - function fromJson
-  - function str
-  - function num
-- `modules/bot/src/main/scala/de/nowchess/bot/bots/nnue/NbaiWriter.scala` — class NbaiWriter, function write
-- `modules/bot/src/main/scala/de/nowchess/bot/logic/AlphaBetaSearch.scala`
-  - function bestMove
-  - function bestMove
-  - function bestMoveWithTime
-  - function bestMoveWithTime
-  - function loop
-  - function loop
-- `modules/bot/src/main/scala/de/nowchess/bot/logic/MoveOrdering.scala`
-  - class MoveOrdering
-  - class OrderingContext
-  - function addKillerMove
-  - function getKillerMoves
-  - function addHistory
-  - function getHistory
-  - _...3 more_
-- `modules/bot/src/main/scala/de/nowchess/bot/logic/TranspositionTable.scala`
-  - function advance
-  - function probe
-  - function store
-  - function clear
-- `modules/bot/src/main/scala/de/nowchess/bot/util/PolyglotBook.scala` — function probe, function select
-- `modules/bot/src/main/scala/de/nowchess/bot/util/PolyglotHash.scala` — class PolyglotHash, function hash
-- `modules/bot/src/main/scala/de/nowchess/bot/util/ZobristHash.scala`
-  - class ZobristHash
-  - function hash
-  - function nextHash
 - `modules/core/src/main/scala/de/nowchess/chess/command/Command.scala`
   - class Command
   - function execute
@@ -185,16 +74,15 @@
   - function history
   - function getCurrentIndex
   - _...3 more_
-- `modules/core/src/main/scala/de/nowchess/chess/config/JacksonConfig.scala` — class JacksonConfig, function customize
 - `modules/core/src/main/scala/de/nowchess/chess/controller/Parser.scala` — class Parser, function parseMove
 - `modules/core/src/main/scala/de/nowchess/chess/engine/GameEngine.scala`
   - class GameEngine
+  - function isPendingPromotion
   - function board
   - function turn
   - function context
   - function canUndo
-  - function canRedo
-  - _...11 more_
+  - _...10 more_
 - `modules/core/src/main/scala/de/nowchess/chess/observer/Observer.scala`
   - function context
   - class Observer
@@ -203,35 +91,8 @@
   - function subscribe
   - function unsubscribe
   - _...1 more_
-- `modules/core/src/main/scala/de/nowchess/chess/registry/GameRegistry.scala`
-  - class GameRegistry
-  - function store
-  - function get
-  - function update
-  - function generateId
-- `modules/core/src/main/scala/de/nowchess/chess/registry/GameRegistryImpl.scala`
-  - class GameRegistryImpl
-  - function store
-  - function get
-  - function update
-  - function generateId
-- `modules/core/src/main/scala/de/nowchess/chess/resource/GameResource.scala`
-  - function onGameEvent
-  - function createGame
-  - function getGame
-  - function streamGame
-  - function onGameEvent
-  - function resignGame
-  - _...9 more_
 - `modules/io/src/main/scala/de/nowchess/io/GameContextExport.scala` — class GameContextExport, function exportGameContext
 - `modules/io/src/main/scala/de/nowchess/io/GameContextImport.scala` — class GameContextImport, function importGameContext
-- `modules/io/src/main/scala/de/nowchess/io/GameFileService.scala`
-  - class GameFileService
-  - function saveGameToFile
-  - function loadGameFromFile
-  - class FileSystemGameService
-  - function saveGameToFile
-  - function loadGameFromFile
 - `modules/io/src/main/scala/de/nowchess/io/fen/FenExporter.scala`
   - class FenExporter
   - function boardToFen
@@ -253,8 +114,6 @@
   - function parseBoard
   - function importGameContext
 - `modules/io/src/main/scala/de/nowchess/io/fen/FenParserSupport.scala` — function buildSquares
-- `modules/io/src/main/scala/de/nowchess/io/json/JsonExporter.scala` — class JsonExporter, function exportGameContext
-- `modules/io/src/main/scala/de/nowchess/io/json/JsonParser.scala` — class JsonParser, function importGameContext
 - `modules/io/src/main/scala/de/nowchess/io/pgn/PgnExporter.scala`
   - class PgnExporter
   - function exportGameContext
@@ -272,28 +131,32 @@
   - function allLegalMoves
   - function isCheck
   - function isCheckmate
-  - _...5 more_
+  - _...4 more_
 - `modules/rule/src/main/scala/de/nowchess/rules/sets/DefaultRules.scala`
   - class DefaultRules
-  - function positionOf
   - function loop
   - function toMoves
   - function loop
-
----
-
-# Config
-
-## Environment Variables
-
-- `STOCKFISH_PATH` **required** — modules/bot/python/nnue.py
-
----
-
-# Middleware
-
-## custom
-- generate — `modules/bot/python/src/generate.py`
+- `modules/ui/src/main/scala/de/nowchess/ui/Main.scala` — class Main, function main
+- `modules/ui/src/main/scala/de/nowchess/ui/gui/ChessBoardView.scala`
+  - class ChessBoardView
+  - function updateBoard
+  - function updateUndoRedoButtons
+  - function showMessage
+  - function showPromotionDialog
+- `modules/ui/src/main/scala/de/nowchess/ui/gui/ChessGUI.scala`
+  - class ChessGUIApp
+  - class ChessGUILauncher
+  - function getEngine
+  - function launch
+- `modules/ui/src/main/scala/de/nowchess/ui/gui/GUIObserver.scala` — class GUIObserver
+- `modules/ui/src/main/scala/de/nowchess/ui/gui/PieceSprites.scala`
+  - class PieceSprites
+  - function loadPieceImage
+  - class SquareColors
+- `modules/ui/src/main/scala/de/nowchess/ui/terminal/TerminalUI.scala` — class TerminalUI, function start
+- `modules/ui/src/main/scala/de/nowchess/ui/utils/PieceUnicode.scala` — function unicode
+- `modules/ui/src/main/scala/de/nowchess/ui/utils/Renderer.scala` — class Renderer, function render
 
 ---
 
@@ -301,39 +164,39 @@
 
 ## Most Imported Files (change these carefully)
 
-- `modules/api/src/main/scala/de/nowchess/api/game/GameContext.scala` — imported by **64** files
-- `modules/api/src/main/scala/de/nowchess/api/move/Move.scala` — imported by **44** files
-- `modules/api/src/main/scala/de/nowchess/api/board/Square.scala` — imported by **40** files
-- `modules/api/src/main/scala/de/nowchess/api/board/Color.scala` — imported by **35** files
-- `modules/api/src/main/scala/de/nowchess/api/board/Board.scala` — imported by **19** files
-- `modules/api/src/main/scala/de/nowchess/api/board/Piece.scala` — imported by **18** files
-- `modules/api/src/main/scala/de/nowchess/api/board/PieceType.scala` — imported by **17** files
-- `modules/rule/src/main/scala/de/nowchess/rules/sets/DefaultRules.scala` — imported by **17** files
-- `modules/rule/src/main/scala/de/nowchess/rules/RuleSet.scala` — imported by **11** files
-- `modules/io/src/main/scala/de/nowchess/io/fen/FenParser.scala` — imported by **10** files
-- `modules/api/src/main/scala/de/nowchess/api/board/CastlingRights.scala` — imported by **9** files
-- `modules/api/src/main/scala/de/nowchess/api/game/DrawReason.scala` — imported by **7** files
+- `modules/api/src/main/scala/de/nowchess/api/game/GameContext.scala` — imported by **28** files
+- `modules/api/src/main/scala/de/nowchess/api/board/Square.scala` — imported by **21** files
+- `modules/api/src/main/scala/de/nowchess/api/board/Color.scala` — imported by **19** files
+- `modules/api/src/main/scala/de/nowchess/api/move/Move.scala` — imported by **14** files
+- `modules/api/src/main/scala/de/nowchess/api/board/Board.scala` — imported by **13** files
+- `modules/api/src/main/scala/de/nowchess/api/board/Piece.scala` — imported by **10** files
+- `modules/api/src/main/scala/de/nowchess/api/board/PieceType.scala` — imported by **9** files
+- `modules/io/src/main/scala/de/nowchess/io/fen/FenParser.scala` — imported by **9** files
+- `modules/rule/src/main/scala/de/nowchess/rules/sets/DefaultRules.scala` — imported by **8** files
 - `modules/io/src/main/scala/de/nowchess/io/GameContextImport.scala` — imported by **7** files
-- `modules/api/src/main/scala/de/nowchess/api/bot/Bot.scala` — imported by **6** files
-- `modules/bot/src/main/scala/de/nowchess/bot/ai/Evaluation.scala` — imported by **6** files
-- `modules/api/src/main/scala/de/nowchess/api/player/PlayerInfo.scala` — imported by **5** files
-- `modules/bot/src/main/scala/de/nowchess/bot/util/PolyglotBook.scala` — imported by **5** files
-- `modules/api/src/main/scala/de/nowchess/api/game/GameResult.scala` — imported by **4** files
-- `modules/bot/src/main/scala/de/nowchess/bot/bots/ClassicalBot.scala` — imported by **4** files
-- `modules/bot/src/main/scala/de/nowchess/bot/bots/classic/EvaluationClassic.scala` — imported by **4** files
+- `modules/api/src/main/scala/de/nowchess/api/board/CastlingRights.scala` — imported by **4** files
+- `modules/io/src/main/scala/de/nowchess/io/GameContextExport.scala` — imported by **4** files
+- `modules/rule/src/main/scala/de/nowchess/rules/RuleSet.scala` — imported by **4** files
+- `modules/core/src/main/scala/de/nowchess/chess/observer/Observer.scala` — imported by **4** files
+- `modules/core/src/main/scala/de/nowchess/chess/engine/GameEngine.scala` — imported by **4** files
+- `modules/io/src/main/scala/de/nowchess/io/pgn/PgnParser.scala` — imported by **2** files
+- `modules/io/src/main/scala/de/nowchess/io/pgn/PgnExporter.scala` — imported by **2** files
+- `modules/io/src/main/scala/de/nowchess/io/fen/FenExporter.scala` — imported by **2** files
+- `modules/io/src/main/scala/de/nowchess/io/fen/FenParserSupport.scala` — imported by **2** files
+- `modules/core/src/main/scala/de/nowchess/chess/controller/Parser.scala` — imported by **1** files
 
 ## Import Map (who imports what)
 
-- `modules/api/src/main/scala/de/nowchess/api/game/GameContext.scala` ← `modules/api/src/main/scala/de/nowchess/api/bot/Bot.scala`, `modules/bot/src/main/scala/de/nowchess/bot/BotMoveRepetition.scala`, `modules/bot/src/main/scala/de/nowchess/bot/ai/Evaluation.scala`, `modules/bot/src/main/scala/de/nowchess/bot/bots/ClassicalBot.scala`, `modules/bot/src/main/scala/de/nowchess/bot/bots/HybridBot.scala` +59 more
-- `modules/api/src/main/scala/de/nowchess/api/move/Move.scala` ← `modules/api/src/main/scala/de/nowchess/api/bot/Bot.scala`, `modules/api/src/main/scala/de/nowchess/api/game/GameContext.scala`, `modules/api/src/test/scala/de/nowchess/api/board/BoardTest.scala`, `modules/api/src/test/scala/de/nowchess/api/game/GameContextTest.scala`, `modules/bot/src/main/scala/de/nowchess/bot/BotMoveRepetition.scala` +39 more
-- `modules/api/src/main/scala/de/nowchess/api/board/Square.scala` ← `modules/api/src/main/scala/de/nowchess/api/game/GameContext.scala`, `modules/api/src/main/scala/de/nowchess/api/move/Move.scala`, `modules/api/src/test/scala/de/nowchess/api/game/GameContextTest.scala`, `modules/api/src/test/scala/de/nowchess/api/move/MoveTest.scala`, `modules/bot/src/main/scala/de/nowchess/bot/bots/classic/EvaluationClassic.scala` +35 more
-- `modules/api/src/main/scala/de/nowchess/api/board/Color.scala` ← `modules/api/src/main/scala/de/nowchess/api/game/GameContext.scala`, `modules/api/src/main/scala/de/nowchess/api/game/GameResult.scala`, `modules/api/src/test/scala/de/nowchess/api/game/GameContextTest.scala`, `modules/bot/src/main/scala/de/nowchess/bot/bots/classic/EvaluationClassic.scala`, `modules/bot/src/main/scala/de/nowchess/bot/bots/nnue/NNUE.scala` +30 more
-- `modules/api/src/main/scala/de/nowchess/api/board/Board.scala` ← `modules/api/src/main/scala/de/nowchess/api/game/GameContext.scala`, `modules/api/src/test/scala/de/nowchess/api/game/GameContextTest.scala`, `modules/bot/src/main/scala/de/nowchess/bot/bots/nnue/NNUE.scala`, `modules/bot/src/main/scala/de/nowchess/bot/logic/MoveOrdering.scala`, `modules/bot/src/test/scala/de/nowchess/bot/AlphaBetaSearchTest.scala` +14 more
-- `modules/api/src/main/scala/de/nowchess/api/board/Piece.scala` ← `modules/bot/src/main/scala/de/nowchess/bot/bots/nnue/NNUE.scala`, `modules/bot/src/main/scala/de/nowchess/bot/logic/MoveOrdering.scala`, `modules/bot/src/main/scala/de/nowchess/bot/util/PolyglotHash.scala`, `modules/bot/src/main/scala/de/nowchess/bot/util/ZobristHash.scala`, `modules/bot/src/test/scala/de/nowchess/bot/AlphaBetaSearchTest.scala` +13 more
-- `modules/api/src/main/scala/de/nowchess/api/board/PieceType.scala` ← `modules/api/src/main/scala/de/nowchess/api/game/GameContext.scala`, `modules/bot/src/main/scala/de/nowchess/bot/bots/classic/EvaluationClassic.scala`, `modules/bot/src/main/scala/de/nowchess/bot/bots/nnue/NNUE.scala`, `modules/bot/src/main/scala/de/nowchess/bot/logic/AlphaBetaSearch.scala`, `modules/bot/src/main/scala/de/nowchess/bot/logic/MoveOrdering.scala` +12 more
-- `modules/rule/src/main/scala/de/nowchess/rules/sets/DefaultRules.scala` ← `modules/bot/src/main/scala/de/nowchess/bot/bots/ClassicalBot.scala`, `modules/bot/src/main/scala/de/nowchess/bot/bots/HybridBot.scala`, `modules/bot/src/main/scala/de/nowchess/bot/bots/NNUEBot.scala`, `modules/bot/src/main/scala/de/nowchess/bot/logic/AlphaBetaSearch.scala`, `modules/bot/src/test/scala/de/nowchess/bot/AlphaBetaSearchTest.scala` +12 more
-- `modules/rule/src/main/scala/de/nowchess/rules/RuleSet.scala` ← `modules/bot/src/main/scala/de/nowchess/bot/bots/ClassicalBot.scala`, `modules/bot/src/main/scala/de/nowchess/bot/bots/HybridBot.scala`, `modules/bot/src/main/scala/de/nowchess/bot/bots/NNUEBot.scala`, `modules/bot/src/main/scala/de/nowchess/bot/logic/AlphaBetaSearch.scala`, `modules/bot/src/test/scala/de/nowchess/bot/AlphaBetaSearchTest.scala` +6 more
-- `modules/io/src/main/scala/de/nowchess/io/fen/FenParser.scala` ← `modules/bot/src/test/scala/de/nowchess/bot/PolyglotHashTest.scala`, `modules/core/src/main/scala/de/nowchess/chess/resource/GameResource.scala`, `modules/core/src/test/scala/de/nowchess/chess/engine/EngineTestHelpers.scala`, `modules/core/src/test/scala/de/nowchess/chess/engine/GameEngineLoadGameTest.scala`, `modules/core/src/test/scala/de/nowchess/chess/engine/GameEngineNotationTest.scala` +5 more
+- `modules/api/src/main/scala/de/nowchess/api/game/GameContext.scala` ← `modules/core/src/main/scala/de/nowchess/chess/command/Command.scala`, `modules/core/src/main/scala/de/nowchess/chess/engine/GameEngine.scala`, `modules/core/src/main/scala/de/nowchess/chess/observer/Observer.scala`, `modules/core/src/test/scala/de/nowchess/chess/command/CommandInvokerBranchTest.scala`, `modules/core/src/test/scala/de/nowchess/chess/command/CommandInvokerTest.scala` +23 more
+- `modules/api/src/main/scala/de/nowchess/api/board/Square.scala` ← `modules/api/src/main/scala/de/nowchess/api/game/GameContext.scala`, `modules/api/src/main/scala/de/nowchess/api/move/Move.scala`, `modules/api/src/test/scala/de/nowchess/api/game/GameContextTest.scala`, `modules/api/src/test/scala/de/nowchess/api/move/MoveTest.scala`, `modules/core/src/main/scala/de/nowchess/chess/command/Command.scala` +16 more
+- `modules/api/src/main/scala/de/nowchess/api/board/Color.scala` ← `modules/api/src/main/scala/de/nowchess/api/game/GameContext.scala`, `modules/api/src/test/scala/de/nowchess/api/game/GameContextTest.scala`, `modules/core/src/main/scala/de/nowchess/chess/engine/GameEngine.scala`, `modules/core/src/main/scala/de/nowchess/chess/observer/Observer.scala`, `modules/core/src/test/scala/de/nowchess/chess/engine/EngineTestHelpers.scala` +14 more
+- `modules/api/src/main/scala/de/nowchess/api/move/Move.scala` ← `modules/api/src/main/scala/de/nowchess/api/game/GameContext.scala`, `modules/api/src/test/scala/de/nowchess/api/board/BoardTest.scala`, `modules/api/src/test/scala/de/nowchess/api/game/GameContextTest.scala`, `modules/core/src/main/scala/de/nowchess/chess/engine/GameEngine.scala`, `modules/core/src/test/scala/de/nowchess/chess/engine/GameEngineIntegrationTest.scala` +9 more
+- `modules/api/src/main/scala/de/nowchess/api/board/Board.scala` ← `modules/api/src/main/scala/de/nowchess/api/game/GameContext.scala`, `modules/api/src/test/scala/de/nowchess/api/game/GameContextTest.scala`, `modules/core/src/main/scala/de/nowchess/chess/engine/GameEngine.scala`, `modules/core/src/test/scala/de/nowchess/chess/engine/EngineTestHelpers.scala`, `modules/core/src/test/scala/de/nowchess/chess/engine/GameEngineGameEndingTest.scala` +8 more
+- `modules/api/src/main/scala/de/nowchess/api/board/Piece.scala` ← `modules/core/src/main/scala/de/nowchess/chess/command/Command.scala`, `modules/core/src/main/scala/de/nowchess/chess/engine/GameEngine.scala`, `modules/core/src/test/scala/de/nowchess/chess/engine/GameEnginePromotionTest.scala`, `modules/core/src/test/scala/de/nowchess/chess/engine/GameEngineScenarioTest.scala`, `modules/rule/src/test/scala/de/nowchess/rule/DefaultRulesStateTransitionsTest.scala` +5 more
+- `modules/api/src/main/scala/de/nowchess/api/board/PieceType.scala` ← `modules/core/src/main/scala/de/nowchess/chess/engine/GameEngine.scala`, `modules/core/src/test/scala/de/nowchess/chess/engine/GameEngineIntegrationTest.scala`, `modules/core/src/test/scala/de/nowchess/chess/engine/GameEnginePromotionTest.scala`, `modules/rule/src/test/scala/de/nowchess/rule/DefaultRulesStateTransitionsTest.scala`, `modules/rule/src/test/scala/de/nowchess/rule/DefaultRulesTest.scala` +4 more
+- `modules/io/src/main/scala/de/nowchess/io/fen/FenParser.scala` ← `modules/core/src/test/scala/de/nowchess/chess/engine/EngineTestHelpers.scala`, `modules/core/src/test/scala/de/nowchess/chess/engine/GameEngineLoadGameTest.scala`, `modules/core/src/test/scala/de/nowchess/chess/engine/GameEngineNotationTest.scala`, `modules/core/src/test/scala/de/nowchess/chess/engine/GameEnginePromotionTest.scala`, `modules/core/src/test/scala/de/nowchess/chess/engine/GameEngineScenarioTest.scala` +4 more
+- `modules/rule/src/main/scala/de/nowchess/rules/sets/DefaultRules.scala` ← `modules/core/src/main/scala/de/nowchess/chess/engine/GameEngine.scala`, `modules/core/src/test/scala/de/nowchess/chess/engine/EngineTestHelpers.scala`, `modules/core/src/test/scala/de/nowchess/chess/engine/GameEngineIntegrationTest.scala`, `modules/core/src/test/scala/de/nowchess/chess/engine/GameEnginePromotionTest.scala`, `modules/io/src/main/scala/de/nowchess/io/pgn/PgnExporter.scala` +3 more
+- `modules/io/src/main/scala/de/nowchess/io/GameContextImport.scala` ← `modules/core/src/main/scala/de/nowchess/chess/engine/GameEngine.scala`, `modules/core/src/test/scala/de/nowchess/chess/engine/GameEngineIntegrationTest.scala`, `modules/io/src/main/scala/de/nowchess/io/fen/FenParser.scala`, `modules/io/src/main/scala/de/nowchess/io/fen/FenParserCombinators.scala`, `modules/io/src/main/scala/de/nowchess/io/fen/FenParserFastParse.scala` +2 more
 
 ---
 

.codesight/config.md

@@ -1,5 +0,0 @@
-# Config
-
-## Environment Variables
-
-- `STOCKFISH_PATH` **required** — modules/bot/python/nnue.py

.codesight/graph.md

@@ -2,36 +2,36 @@
 
 ## Most Imported Files (change these carefully)
 
-- `modules/api/src/main/scala/de/nowchess/api/game/GameContext.scala` — imported by **64** files
-- `modules/api/src/main/scala/de/nowchess/api/move/Move.scala` — imported by **44** files
-- `modules/api/src/main/scala/de/nowchess/api/board/Square.scala` — imported by **40** files
-- `modules/api/src/main/scala/de/nowchess/api/board/Color.scala` — imported by **35** files
-- `modules/api/src/main/scala/de/nowchess/api/board/Board.scala` — imported by **19** files
-- `modules/api/src/main/scala/de/nowchess/api/board/Piece.scala` — imported by **18** files
-- `modules/api/src/main/scala/de/nowchess/api/board/PieceType.scala` — imported by **17** files
-- `modules/rule/src/main/scala/de/nowchess/rules/sets/DefaultRules.scala` — imported by **17** files
-- `modules/rule/src/main/scala/de/nowchess/rules/RuleSet.scala` — imported by **11** files
-- `modules/io/src/main/scala/de/nowchess/io/fen/FenParser.scala` — imported by **10** files
-- `modules/api/src/main/scala/de/nowchess/api/board/CastlingRights.scala` — imported by **9** files
-- `modules/api/src/main/scala/de/nowchess/api/game/DrawReason.scala` — imported by **7** files
+- `modules/api/src/main/scala/de/nowchess/api/game/GameContext.scala` — imported by **28** files
+- `modules/api/src/main/scala/de/nowchess/api/board/Square.scala` — imported by **21** files
+- `modules/api/src/main/scala/de/nowchess/api/board/Color.scala` — imported by **19** files
+- `modules/api/src/main/scala/de/nowchess/api/move/Move.scala` — imported by **14** files
+- `modules/api/src/main/scala/de/nowchess/api/board/Board.scala` — imported by **13** files
+- `modules/api/src/main/scala/de/nowchess/api/board/Piece.scala` — imported by **10** files
+- `modules/api/src/main/scala/de/nowchess/api/board/PieceType.scala` — imported by **9** files
+- `modules/io/src/main/scala/de/nowchess/io/fen/FenParser.scala` — imported by **9** files
+- `modules/rule/src/main/scala/de/nowchess/rules/sets/DefaultRules.scala` — imported by **8** files
 - `modules/io/src/main/scala/de/nowchess/io/GameContextImport.scala` — imported by **7** files
-- `modules/api/src/main/scala/de/nowchess/api/bot/Bot.scala` — imported by **6** files
-- `modules/bot/src/main/scala/de/nowchess/bot/ai/Evaluation.scala` — imported by **6** files
-- `modules/api/src/main/scala/de/nowchess/api/player/PlayerInfo.scala` — imported by **5** files
-- `modules/bot/src/main/scala/de/nowchess/bot/util/PolyglotBook.scala` — imported by **5** files
-- `modules/api/src/main/scala/de/nowchess/api/game/GameResult.scala` — imported by **4** files
-- `modules/bot/src/main/scala/de/nowchess/bot/bots/ClassicalBot.scala` — imported by **4** files
-- `modules/bot/src/main/scala/de/nowchess/bot/bots/classic/EvaluationClassic.scala` — imported by **4** files
+- `modules/api/src/main/scala/de/nowchess/api/board/CastlingRights.scala` — imported by **4** files
+- `modules/io/src/main/scala/de/nowchess/io/GameContextExport.scala` — imported by **4** files
+- `modules/rule/src/main/scala/de/nowchess/rules/RuleSet.scala` — imported by **4** files
+- `modules/core/src/main/scala/de/nowchess/chess/observer/Observer.scala` — imported by **4** files
+- `modules/core/src/main/scala/de/nowchess/chess/engine/GameEngine.scala` — imported by **4** files
+- `modules/io/src/main/scala/de/nowchess/io/pgn/PgnParser.scala` — imported by **2** files
+- `modules/io/src/main/scala/de/nowchess/io/pgn/PgnExporter.scala` — imported by **2** files
+- `modules/io/src/main/scala/de/nowchess/io/fen/FenExporter.scala` — imported by **2** files
+- `modules/io/src/main/scala/de/nowchess/io/fen/FenParserSupport.scala` — imported by **2** files
+- `modules/core/src/main/scala/de/nowchess/chess/controller/Parser.scala` — imported by **1** files
 
 ## Import Map (who imports what)
 
-- `modules/api/src/main/scala/de/nowchess/api/game/GameContext.scala` ← `modules/api/src/main/scala/de/nowchess/api/bot/Bot.scala`, `modules/bot/src/main/scala/de/nowchess/bot/BotMoveRepetition.scala`, `modules/bot/src/main/scala/de/nowchess/bot/ai/Evaluation.scala`, `modules/bot/src/main/scala/de/nowchess/bot/bots/ClassicalBot.scala`, `modules/bot/src/main/scala/de/nowchess/bot/bots/HybridBot.scala` +59 more
-- `modules/api/src/main/scala/de/nowchess/api/move/Move.scala` ← `modules/api/src/main/scala/de/nowchess/api/bot/Bot.scala`, `modules/api/src/main/scala/de/nowchess/api/game/GameContext.scala`, `modules/api/src/test/scala/de/nowchess/api/board/BoardTest.scala`, `modules/api/src/test/scala/de/nowchess/api/game/GameContextTest.scala`, `modules/bot/src/main/scala/de/nowchess/bot/BotMoveRepetition.scala` +39 more
-- `modules/api/src/main/scala/de/nowchess/api/board/Square.scala` ← `modules/api/src/main/scala/de/nowchess/api/game/GameContext.scala`, `modules/api/src/main/scala/de/nowchess/api/move/Move.scala`, `modules/api/src/test/scala/de/nowchess/api/game/GameContextTest.scala`, `modules/api/src/test/scala/de/nowchess/api/move/MoveTest.scala`, `modules/bot/src/main/scala/de/nowchess/bot/bots/classic/EvaluationClassic.scala` +35 more
-- `modules/api/src/main/scala/de/nowchess/api/board/Color.scala` ← `modules/api/src/main/scala/de/nowchess/api/game/GameContext.scala`, `modules/api/src/main/scala/de/nowchess/api/game/GameResult.scala`, `modules/api/src/test/scala/de/nowchess/api/game/GameContextTest.scala`, `modules/bot/src/main/scala/de/nowchess/bot/bots/classic/EvaluationClassic.scala`, `modules/bot/src/main/scala/de/nowchess/bot/bots/nnue/NNUE.scala` +30 more
-- `modules/api/src/main/scala/de/nowchess/api/board/Board.scala` ← `modules/api/src/main/scala/de/nowchess/api/game/GameContext.scala`, `modules/api/src/test/scala/de/nowchess/api/game/GameContextTest.scala`, `modules/bot/src/main/scala/de/nowchess/bot/bots/nnue/NNUE.scala`, `modules/bot/src/main/scala/de/nowchess/bot/logic/MoveOrdering.scala`, `modules/bot/src/test/scala/de/nowchess/bot/AlphaBetaSearchTest.scala` +14 more
-- `modules/api/src/main/scala/de/nowchess/api/board/Piece.scala` ← `modules/bot/src/main/scala/de/nowchess/bot/bots/nnue/NNUE.scala`, `modules/bot/src/main/scala/de/nowchess/bot/logic/MoveOrdering.scala`, `modules/bot/src/main/scala/de/nowchess/bot/util/PolyglotHash.scala`, `modules/bot/src/main/scala/de/nowchess/bot/util/ZobristHash.scala`, `modules/bot/src/test/scala/de/nowchess/bot/AlphaBetaSearchTest.scala` +13 more
-- `modules/api/src/main/scala/de/nowchess/api/board/PieceType.scala` ← `modules/api/src/main/scala/de/nowchess/api/game/GameContext.scala`, `modules/bot/src/main/scala/de/nowchess/bot/bots/classic/EvaluationClassic.scala`, `modules/bot/src/main/scala/de/nowchess/bot/bots/nnue/NNUE.scala`, `modules/bot/src/main/scala/de/nowchess/bot/logic/AlphaBetaSearch.scala`, `modules/bot/src/main/scala/de/nowchess/bot/logic/MoveOrdering.scala` +12 more
-- `modules/rule/src/main/scala/de/nowchess/rules/sets/DefaultRules.scala` ← `modules/bot/src/main/scala/de/nowchess/bot/bots/ClassicalBot.scala`, `modules/bot/src/main/scala/de/nowchess/bot/bots/HybridBot.scala`, `modules/bot/src/main/scala/de/nowchess/bot/bots/NNUEBot.scala`, `modules/bot/src/main/scala/de/nowchess/bot/logic/AlphaBetaSearch.scala`, `modules/bot/src/test/scala/de/nowchess/bot/AlphaBetaSearchTest.scala` +12 more
-- `modules/rule/src/main/scala/de/nowchess/rules/RuleSet.scala` ← `modules/bot/src/main/scala/de/nowchess/bot/bots/ClassicalBot.scala`, `modules/bot/src/main/scala/de/nowchess/bot/bots/HybridBot.scala`, `modules/bot/src/main/scala/de/nowchess/bot/bots/NNUEBot.scala`, `modules/bot/src/main/scala/de/nowchess/bot/logic/AlphaBetaSearch.scala`, `modules/bot/src/test/scala/de/nowchess/bot/AlphaBetaSearchTest.scala` +6 more
-- `modules/io/src/main/scala/de/nowchess/io/fen/FenParser.scala` ← `modules/bot/src/test/scala/de/nowchess/bot/PolyglotHashTest.scala`, `modules/core/src/main/scala/de/nowchess/chess/resource/GameResource.scala`, `modules/core/src/test/scala/de/nowchess/chess/engine/EngineTestHelpers.scala`, `modules/core/src/test/scala/de/nowchess/chess/engine/GameEngineLoadGameTest.scala`, `modules/core/src/test/scala/de/nowchess/chess/engine/GameEngineNotationTest.scala` +5 more
+- `modules/api/src/main/scala/de/nowchess/api/game/GameContext.scala` ← `modules/core/src/main/scala/de/nowchess/chess/command/Command.scala`, `modules/core/src/main/scala/de/nowchess/chess/engine/GameEngine.scala`, `modules/core/src/main/scala/de/nowchess/chess/observer/Observer.scala`, `modules/core/src/test/scala/de/nowchess/chess/command/CommandInvokerBranchTest.scala`, `modules/core/src/test/scala/de/nowchess/chess/command/CommandInvokerTest.scala` +23 more
+- `modules/api/src/main/scala/de/nowchess/api/board/Square.scala` ← `modules/api/src/main/scala/de/nowchess/api/game/GameContext.scala`, `modules/api/src/main/scala/de/nowchess/api/move/Move.scala`, `modules/api/src/test/scala/de/nowchess/api/game/GameContextTest.scala`, `modules/api/src/test/scala/de/nowchess/api/move/MoveTest.scala`, `modules/core/src/main/scala/de/nowchess/chess/command/Command.scala` +16 more
+- `modules/api/src/main/scala/de/nowchess/api/board/Color.scala` ← `modules/api/src/main/scala/de/nowchess/api/game/GameContext.scala`, `modules/api/src/test/scala/de/nowchess/api/game/GameContextTest.scala`, `modules/core/src/main/scala/de/nowchess/chess/engine/GameEngine.scala`, `modules/core/src/main/scala/de/nowchess/chess/observer/Observer.scala`, `modules/core/src/test/scala/de/nowchess/chess/engine/EngineTestHelpers.scala` +14 more
+- `modules/api/src/main/scala/de/nowchess/api/move/Move.scala` ← `modules/api/src/main/scala/de/nowchess/api/game/GameContext.scala`, `modules/api/src/test/scala/de/nowchess/api/board/BoardTest.scala`, `modules/api/src/test/scala/de/nowchess/api/game/GameContextTest.scala`, `modules/core/src/main/scala/de/nowchess/chess/engine/GameEngine.scala`, `modules/core/src/test/scala/de/nowchess/chess/engine/GameEngineIntegrationTest.scala` +9 more
+- `modules/api/src/main/scala/de/nowchess/api/board/Board.scala` ← `modules/api/src/main/scala/de/nowchess/api/game/GameContext.scala`, `modules/api/src/test/scala/de/nowchess/api/game/GameContextTest.scala`, `modules/core/src/main/scala/de/nowchess/chess/engine/GameEngine.scala`, `modules/core/src/test/scala/de/nowchess/chess/engine/EngineTestHelpers.scala`, `modules/core/src/test/scala/de/nowchess/chess/engine/GameEngineGameEndingTest.scala` +8 more
+- `modules/api/src/main/scala/de/nowchess/api/board/Piece.scala` ← `modules/core/src/main/scala/de/nowchess/chess/command/Command.scala`, `modules/core/src/main/scala/de/nowchess/chess/engine/GameEngine.scala`, `modules/core/src/test/scala/de/nowchess/chess/engine/GameEnginePromotionTest.scala`, `modules/core/src/test/scala/de/nowchess/chess/engine/GameEngineScenarioTest.scala`, `modules/rule/src/test/scala/de/nowchess/rule/DefaultRulesStateTransitionsTest.scala` +5 more
+- `modules/api/src/main/scala/de/nowchess/api/board/PieceType.scala` ← `modules/core/src/main/scala/de/nowchess/chess/engine/GameEngine.scala`, `modules/core/src/test/scala/de/nowchess/chess/engine/GameEngineIntegrationTest.scala`, `modules/core/src/test/scala/de/nowchess/chess/engine/GameEnginePromotionTest.scala`, `modules/rule/src/test/scala/de/nowchess/rule/DefaultRulesStateTransitionsTest.scala`, `modules/rule/src/test/scala/de/nowchess/rule/DefaultRulesTest.scala` +4 more
+- `modules/io/src/main/scala/de/nowchess/io/fen/FenParser.scala` ← `modules/core/src/test/scala/de/nowchess/chess/engine/EngineTestHelpers.scala`, `modules/core/src/test/scala/de/nowchess/chess/engine/GameEngineLoadGameTest.scala`, `modules/core/src/test/scala/de/nowchess/chess/engine/GameEngineNotationTest.scala`, `modules/core/src/test/scala/de/nowchess/chess/engine/GameEnginePromotionTest.scala`, `modules/core/src/test/scala/de/nowchess/chess/engine/GameEngineScenarioTest.scala` +4 more
+- `modules/rule/src/main/scala/de/nowchess/rules/sets/DefaultRules.scala` ← `modules/core/src/main/scala/de/nowchess/chess/engine/GameEngine.scala`, `modules/core/src/test/scala/de/nowchess/chess/engine/EngineTestHelpers.scala`, `modules/core/src/test/scala/de/nowchess/chess/engine/GameEngineIntegrationTest.scala`, `modules/core/src/test/scala/de/nowchess/chess/engine/GameEnginePromotionTest.scala`, `modules/io/src/main/scala/de/nowchess/io/pgn/PgnExporter.scala` +3 more
+- `modules/io/src/main/scala/de/nowchess/io/GameContextImport.scala` ← `modules/core/src/main/scala/de/nowchess/chess/engine/GameEngine.scala`, `modules/core/src/test/scala/de/nowchess/chess/engine/GameEngineIntegrationTest.scala`, `modules/io/src/main/scala/de/nowchess/io/fen/FenParser.scala`, `modules/io/src/main/scala/de/nowchess/io/fen/FenParserCombinators.scala`, `modules/io/src/main/scala/de/nowchess/io/fen/FenParserFastParse.scala` +2 more

.codesight/libs.md

@@ -38,130 +38,19 @@
   - class Square
   - function fromAlgebraic
   - function offset
-- `modules/api/src/main/scala/de/nowchess/api/bot/Bot.scala`
-  - class Bot
-  - function name
-  - function nextMove
-- `modules/api/src/main/scala/de/nowchess/api/dto/ErrorEventDto.scala` — class ErrorEventDto, function apply
-- `modules/api/src/main/scala/de/nowchess/api/dto/GameFullEventDto.scala` — class GameFullEventDto, function apply
-- `modules/api/src/main/scala/de/nowchess/api/dto/GameStateEventDto.scala` — class GameStateEventDto, function apply
 - `modules/api/src/main/scala/de/nowchess/api/game/GameContext.scala`
-  - function kingSquare
   - function withBoard
   - function withTurn
   - function withCastlingRights
   - function withEnPassantSquare
   - function withHalfMoveClock
-  - _...4 more_
+  - function withMove
+  - _...2 more_
 - `modules/api/src/main/scala/de/nowchess/api/player/PlayerInfo.scala` — class PlayerId, function apply
 - `modules/api/src/main/scala/de/nowchess/api/response/ApiResponse.scala`
   - class ApiResponse
   - function error
   - function totalPages
-- `modules/bot/python/nnue.py`
-  - function get_weights_dir: ()
-  - function get_data_dir: ()
-  - function list_checkpoints: ()
-  - function migrate_legacy_data: ()
-  - function show_header: ()
-  - function show_checkpoints_table: ()
-  - _...10 more_
-- `modules/bot/python/src/dataset.py`
-  - function get_datasets_dir: () -> Path
-  - function next_dataset_version: () -> int
-  - function list_datasets: () -> List[Tuple[int, Dict]]
-  - function load_dataset_metadata: (version) -> Optional[Dict]
-  - function save_dataset_metadata: (version, metadata) -> None
-  - function create_dataset: (version, labeled_jsonl_path, sources, stockfish_depth) -> Path
-  - _...4 more_
-- `modules/bot/python/src/export.py` — function export_to_nbai: (weights_file, output_file, trained_by, train_loss)
-- `modules/bot/python/src/generate.py` — function play_random_game_and_collect_positions: (output_file, total_positions, samples_per_game, min_move, max_move, num_workers)
-- `modules/bot/python/src/label.py` — function normalize_evaluation: (cp_value, method, scale), function label_positions_with_stockfish: (positions_file, output_file, stockfish_path, batch_size, depth, verbose, normalize, num_workers)
-- `modules/bot/python/src/lichess_importer.py` — function import_lichess_evals: (input_path, output_file, max_positions, min_depth, verbose) -> int
-- `modules/bot/python/src/tactical_positions_extractor.py`
-  - function download_and_extract_puzzle_db: (url, output_dir)
-  - function extract_puzzle_positions: (puzzle_csv, max_puzzles) -> Set[str]
-  - function load_positions_from_file: (file_path) -> Set[str]
-  - function merge_positions: (tactical, other, output_file)
-  - function extract_tactical_only: (puzzle_csv, output_file, max_puzzles) -> int
-  - function interactive_merge_positions: (puzzle_csv, output_file, max_puzzles)
-- `modules/bot/python/src/train.py`
-  - function fen_to_features: (fen)
-  - function find_next_version: (base_name)
-  - function save_metadata: (weights_file, metadata)
-  - function train_nnue: (data_file, output_file, epochs, batch_size, lr, checkpoint, stockfish_depth, use_versioning, early_stopping_patience, weight_decay, subsample_ratio, hidden_sizes)
-  - function burst_train: (data_file, output_file, duration_minutes, epochs_per_season, early_stopping_patience, batch_size, lr, initial_checkpoint, stockfish_depth, use_versioning, weight_decay, subsample_ratio, hidden_sizes)
-  - class NNUEDataset
-  - _...1 more_
-- `modules/bot/src/main/scala/de/nowchess/bot/BotController.scala`
-  - class BotController
-  - function getBot
-  - function listBots
-- `modules/bot/src/main/scala/de/nowchess/bot/BotMoveRepetition.scala`
-  - class BotMoveRepetition
-  - function blockedMoves
-  - function repeatedMove
-  - function filterAllowed
-- `modules/bot/src/main/scala/de/nowchess/bot/Config.scala` — class Config
-- `modules/bot/src/main/scala/de/nowchess/bot/ai/Evaluation.scala`
-  - class Evaluation
-  - class CHECKMATE_SCORE
-  - class DRAW_SCORE
-  - function evaluate
-  - function initAccumulator
-  - function copyAccumulator
-  - _...2 more_
-- `modules/bot/src/main/scala/de/nowchess/bot/bots/classic/EvaluationClassic.scala`
-  - class EvaluationClassic
-  - function evaluate
-  - function countRay
-- `modules/bot/src/main/scala/de/nowchess/bot/bots/nnue/EvaluationNNUE.scala` — class EvaluationNNUE, function evaluate
-- `modules/bot/src/main/scala/de/nowchess/bot/bots/nnue/NNUE.scala`
-  - class NNUE
-  - function initAccumulator
-  - function pushAccumulator
-  - function copyAccumulator
-  - function recomputeAccumulator
-  - function validateAccumulator
-  - _...4 more_
-- `modules/bot/src/main/scala/de/nowchess/bot/bots/nnue/NbaiLoader.scala`
-  - class NbaiLoader
-  - function load
-  - function loadDefault
-- `modules/bot/src/main/scala/de/nowchess/bot/bots/nnue/NbaiMigrator.scala` — class NbaiMigrator, function migrateFromBin
-- `modules/bot/src/main/scala/de/nowchess/bot/bots/nnue/NbaiModel.scala`
-  - function toJson
-  - class NbaiMetadata
-  - function fromJson
-  - function str
-  - function num
-- `modules/bot/src/main/scala/de/nowchess/bot/bots/nnue/NbaiWriter.scala` — class NbaiWriter, function write
-- `modules/bot/src/main/scala/de/nowchess/bot/logic/AlphaBetaSearch.scala`
-  - function bestMove
-  - function bestMove
-  - function bestMoveWithTime
-  - function bestMoveWithTime
-  - function loop
-  - function loop
-- `modules/bot/src/main/scala/de/nowchess/bot/logic/MoveOrdering.scala`
-  - class MoveOrdering
-  - class OrderingContext
-  - function addKillerMove
-  - function getKillerMoves
-  - function addHistory
-  - function getHistory
-  - _...3 more_
-- `modules/bot/src/main/scala/de/nowchess/bot/logic/TranspositionTable.scala`
-  - function advance
-  - function probe
-  - function store
-  - function clear
-- `modules/bot/src/main/scala/de/nowchess/bot/util/PolyglotBook.scala` — function probe, function select
-- `modules/bot/src/main/scala/de/nowchess/bot/util/PolyglotHash.scala` — class PolyglotHash, function hash
-- `modules/bot/src/main/scala/de/nowchess/bot/util/ZobristHash.scala`
-  - class ZobristHash
-  - function hash
-  - function nextHash
 - `modules/core/src/main/scala/de/nowchess/chess/command/Command.scala`
   - class Command
   - function execute
@@ -176,16 +65,15 @@
   - function history
   - function getCurrentIndex
   - _...3 more_
-- `modules/core/src/main/scala/de/nowchess/chess/config/JacksonConfig.scala` — class JacksonConfig, function customize
 - `modules/core/src/main/scala/de/nowchess/chess/controller/Parser.scala` — class Parser, function parseMove
 - `modules/core/src/main/scala/de/nowchess/chess/engine/GameEngine.scala`
   - class GameEngine
+  - function isPendingPromotion
   - function board
   - function turn
   - function context
   - function canUndo
-  - function canRedo
-  - _...11 more_
+  - _...10 more_
 - `modules/core/src/main/scala/de/nowchess/chess/observer/Observer.scala`
   - function context
   - class Observer
@@ -194,35 +82,8 @@
   - function subscribe
   - function unsubscribe
   - _...1 more_
-- `modules/core/src/main/scala/de/nowchess/chess/registry/GameRegistry.scala`
-  - class GameRegistry
-  - function store
-  - function get
-  - function update
-  - function generateId
-- `modules/core/src/main/scala/de/nowchess/chess/registry/GameRegistryImpl.scala`
-  - class GameRegistryImpl
-  - function store
-  - function get
-  - function update
-  - function generateId
-- `modules/core/src/main/scala/de/nowchess/chess/resource/GameResource.scala`
-  - function onGameEvent
-  - function createGame
-  - function getGame
-  - function streamGame
-  - function onGameEvent
-  - function resignGame
-  - _...9 more_
 - `modules/io/src/main/scala/de/nowchess/io/GameContextExport.scala` — class GameContextExport, function exportGameContext
 - `modules/io/src/main/scala/de/nowchess/io/GameContextImport.scala` — class GameContextImport, function importGameContext
-- `modules/io/src/main/scala/de/nowchess/io/GameFileService.scala`
-  - class GameFileService
-  - function saveGameToFile
-  - function loadGameFromFile
-  - class FileSystemGameService
-  - function saveGameToFile
-  - function loadGameFromFile
 - `modules/io/src/main/scala/de/nowchess/io/fen/FenExporter.scala`
   - class FenExporter
   - function boardToFen
@@ -244,8 +105,6 @@
   - function parseBoard
   - function importGameContext
 - `modules/io/src/main/scala/de/nowchess/io/fen/FenParserSupport.scala` — function buildSquares
-- `modules/io/src/main/scala/de/nowchess/io/json/JsonExporter.scala` — class JsonExporter, function exportGameContext
-- `modules/io/src/main/scala/de/nowchess/io/json/JsonParser.scala` — class JsonParser, function importGameContext
 - `modules/io/src/main/scala/de/nowchess/io/pgn/PgnExporter.scala`
   - class PgnExporter
   - function exportGameContext
@@ -263,10 +122,29 @@
   - function allLegalMoves
   - function isCheck
   - function isCheckmate
-  - _...5 more_
+  - _...4 more_
 - `modules/rule/src/main/scala/de/nowchess/rules/sets/DefaultRules.scala`
   - class DefaultRules
-  - function positionOf
   - function loop
   - function toMoves
   - function loop
+- `modules/ui/src/main/scala/de/nowchess/ui/Main.scala` — class Main, function main
+- `modules/ui/src/main/scala/de/nowchess/ui/gui/ChessBoardView.scala`
+  - class ChessBoardView
+  - function updateBoard
+  - function updateUndoRedoButtons
+  - function showMessage
+  - function showPromotionDialog
+- `modules/ui/src/main/scala/de/nowchess/ui/gui/ChessGUI.scala`
+  - class ChessGUIApp
+  - class ChessGUILauncher
+  - function getEngine
+  - function launch
+- `modules/ui/src/main/scala/de/nowchess/ui/gui/GUIObserver.scala` — class GUIObserver
+- `modules/ui/src/main/scala/de/nowchess/ui/gui/PieceSprites.scala`
+  - class PieceSprites
+  - function loadPieceImage
+  - class SquareColors
+- `modules/ui/src/main/scala/de/nowchess/ui/terminal/TerminalUI.scala` — class TerminalUI, function start
+- `modules/ui/src/main/scala/de/nowchess/ui/utils/PieceUnicode.scala` — function unicode
+- `modules/ui/src/main/scala/de/nowchess/ui/utils/Renderer.scala` — class Renderer, function render

.codesight/middleware.md

@@ -1,4 +0,0 @@
-# Middleware
-
-## custom
-- generate — `modules/bot/python/src/generate.py`

.codesight/report.html

@@ -1,198 +0,0 @@
-<!DOCTYPE html>
-<html lang="en">
-<head>
-<meta charset="UTF-8">
-<meta name="viewport" content="width=device-width, initial-scale=1.0">
-<title>NowChessSystems — codesight report</title>
-<style>
-*{margin:0;padding:0;box-sizing:border-box}
-:root{--bg:#0a0a0f;--card:#12121a;--border:#1e1e2e;--text:#e0e0e8;--muted:#6b6b80;--accent:#6366f1;--accent2:#22d3ee;--green:#22c55e;--orange:#f59e0b;--red:#ef4444;--pink:#ec4899}
-body{background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;padding:2rem;max-width:1400px;margin:0 auto;line-height:1.6}
-h1{font-size:2.5rem;font-weight:800;background:linear-gradient(135deg,var(--accent),var(--accent2));-webkit-background-clip:text;-webkit-text-fill-color:transparent;margin-bottom:.25rem}
-.subtitle{color:var(--muted);font-size:1rem;margin-bottom:2rem}
-.stack-badge{display:inline-block;background:var(--card);border:1px solid var(--border);border-radius:6px;padding:2px 10px;font-size:.85rem;color:var(--accent2);margin:0 4px 4px 0}
-.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:1rem;margin:2rem 0}
-.stat{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:1.25rem;text-align:center}
-.stat-value{font-size:2rem;font-weight:800;background:linear-gradient(135deg,var(--accent),var(--accent2));-webkit-background-clip:text;-webkit-text-fill-color:transparent}
-.stat-label{color:var(--muted);font-size:.85rem;margin-top:.25rem}
-.token-hero{background:linear-gradient(135deg,#1a1a2e,#16213e);border:1px solid var(--accent);border-radius:16px;padding:2rem;margin:2rem 0;text-align:center}
-.token-saved{font-size:3rem;font-weight:900;color:var(--green)}
-.token-detail{color:var(--muted);font-size:.9rem;margin-top:.5rem}
-.section{margin:2.5rem 0}
-.section h2{font-size:1.4rem;font-weight:700;margin-bottom:1rem;padding-bottom:.5rem;border-bottom:1px solid var(--border)}
-.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:1rem}
-.card{background:var(--card);border:1px solid var(--border);border-radius:10px;padding:1rem;transition:border-color .2s}
-.card:hover{border-color:var(--accent)}
-.card-title{font-weight:700;font-size:1rem;margin-bottom:.5rem}
-.card-meta{color:var(--muted);font-size:.8rem}
-.tag{display:inline-block;background:rgba(99,102,241,.15);color:var(--accent);border-radius:4px;padding:1px 6px;font-size:.75rem;margin:1px}
-.tag-auth{background:rgba(239,68,68,.15);color:var(--red)}
-.tag-db{background:rgba(34,211,238,.15);color:var(--accent2)}
-.tag-ai{background:rgba(236,72,153,.15);color:var(--pink)}
-.tag-payment{background:rgba(245,158,11,.15);color:var(--orange)}
-.tag-email{background:rgba(34,197,94,.15);color:var(--green)}
-.tag-queue{background:rgba(168,85,247,.15);color:#a855f7}
-.tag-cache{background:rgba(245,158,11,.15);color:var(--orange)}
-.method{font-weight:700;font-size:.8rem;padding:2px 6px;border-radius:4px;margin-right:6px}
-.method-GET{background:rgba(34,197,94,.2);color:var(--green)}
-.method-POST{background:rgba(99,102,241,.2);color:var(--accent)}
-.method-PUT{background:rgba(245,158,11,.2);color:var(--orange)}
-.method-PATCH{background:rgba(245,158,11,.2);color:var(--orange)}
-.method-DELETE{background:rgba(239,68,68,.2);color:var(--red)}
-.method-ALL{background:rgba(107,107,128,.2);color:var(--muted)}
-.route-path{font-family:'Fira Code',monospace;font-size:.9rem}
-.route-contract{color:var(--muted);font-size:.8rem;font-style:italic;margin-left:.5rem}
-.field{display:flex;gap:.5rem;padding:3px 0;font-size:.9rem}
-.field-name{font-family:monospace;color:var(--accent2)}
-.field-type{color:var(--muted);font-family:monospace}
-.field-flags{display:flex;gap:3px}
-.flag{font-size:.7rem;padding:0 4px;border-radius:3px;background:rgba(99,102,241,.1);color:var(--accent)}
-.flag-pk{background:rgba(245,158,11,.2);color:var(--orange)}
-.flag-fk{background:rgba(34,211,238,.2);color:var(--accent2)}
-.flag-unique{background:rgba(236,72,153,.2);color:var(--pink)}
-.hot-bar{height:8px;background:linear-gradient(90deg,var(--accent),var(--accent2));border-radius:4px;margin-top:4px}
-.component-props{color:var(--muted);font-size:.85rem}
-.badge-client{background:rgba(34,197,94,.15);color:var(--green);font-size:.75rem;padding:1px 6px;border-radius:4px}
-.badge-server{background:rgba(99,102,241,.15);color:var(--accent);font-size:.75rem;padding:1px 6px;border-radius:4px}
-.env-required{color:var(--red);font-weight:600;font-size:.8rem}
-.env-default{color:var(--green);font-size:.8rem}
-.footer{text-align:center;color:var(--muted);margin-top:4rem;padding-top:2rem;border-top:1px solid var(--border);font-size:.85rem}
-.footer a{color:var(--accent);text-decoration:none}
-table{width:100%;border-collapse:collapse}
-table td,table th{padding:8px 12px;text-align:left;border-bottom:1px solid var(--border);font-size:.9rem}
-table th{color:var(--muted);font-size:.8rem;font-weight:600;text-transform:uppercase}
-</style>
-</head>
-<body>
-
-<h1>NowChessSystems</h1>
-<div class="subtitle">AI Context Map — generated by codesight</div>
-
-<div>
-<span class="stack-badge">raw-http</span>
-
-<span class="stack-badge">unknown</span>
-<span class="stack-badge">scala</span>
-
-</div>
-
-<div class="token-hero">
-  <div class="token-saved">~20,573 tokens saved</div>
-  <div class="token-detail">
-    Output: 5,297 tokens — Exploration cost without codesight: ~25,870 tokens — 149 files scanned
-  </div>
-</div>
-
-<div class="stats">
-  <div class="stat"><div class="stat-value">0</div><div class="stat-label">Routes</div></div>
-  <div class="stat"><div class="stat-value">0</div><div class="stat-label">Models</div></div>
-  <div class="stat"><div class="stat-value">0</div><div class="stat-label">Components</div></div>
-  <div class="stat"><div class="stat-value">63</div><div class="stat-label">Libraries</div></div>
-  <div class="stat"><div class="stat-value">1</div><div class="stat-label">Env Vars</div></div>
-  <div class="stat"><div class="stat-value">1</div><div class="stat-label">Middleware</div></div>
-  <div class="stat"><div class="stat-value">383</div><div class="stat-label">Import Links</div></div>
-</div>
-
-
-
-
-
-
-
-
-<div class="section">
-<h2>Dependency Hot Files</h2>
-<div class="grid">
-<div class="card">
-  <div class="card-title" style="font-size:.9rem">modules/api/src/main/scala/de/nowchess/api/game/GameContext.scala</div>
-  <div class="card-meta">imported by 64 files</div>
-  <div class="hot-bar" style="width:100%"></div>
-</div>
-<div class="card">
-  <div class="card-title" style="font-size:.9rem">modules/api/src/main/scala/de/nowchess/api/move/Move.scala</div>
-  <div class="card-meta">imported by 44 files</div>
-  <div class="hot-bar" style="width:69%"></div>
-</div>
-<div class="card">
-  <div class="card-title" style="font-size:.9rem">modules/api/src/main/scala/de/nowchess/api/board/Square.scala</div>
-  <div class="card-meta">imported by 40 files</div>
-  <div class="hot-bar" style="width:63%"></div>
-</div>
-<div class="card">
-  <div class="card-title" style="font-size:.9rem">modules/api/src/main/scala/de/nowchess/api/board/Color.scala</div>
-  <div class="card-meta">imported by 35 files</div>
-  <div class="hot-bar" style="width:55%"></div>
-</div>
-<div class="card">
-  <div class="card-title" style="font-size:.9rem">modules/api/src/main/scala/de/nowchess/api/board/Board.scala</div>
-  <div class="card-meta">imported by 19 files</div>
-  <div class="hot-bar" style="width:30%"></div>
-</div>
-<div class="card">
-  <div class="card-title" style="font-size:.9rem">modules/api/src/main/scala/de/nowchess/api/board/Piece.scala</div>
-  <div class="card-meta">imported by 18 files</div>
-  <div class="hot-bar" style="width:28%"></div>
-</div>
-<div class="card">
-  <div class="card-title" style="font-size:.9rem">modules/api/src/main/scala/de/nowchess/api/board/PieceType.scala</div>
-  <div class="card-meta">imported by 17 files</div>
-  <div class="hot-bar" style="width:27%"></div>
-</div>
-<div class="card">
-  <div class="card-title" style="font-size:.9rem">modules/rule/src/main/scala/de/nowchess/rules/sets/DefaultRules.scala</div>
-  <div class="card-meta">imported by 17 files</div>
-  <div class="hot-bar" style="width:27%"></div>
-</div>
-<div class="card">
-  <div class="card-title" style="font-size:.9rem">modules/rule/src/main/scala/de/nowchess/rules/RuleSet.scala</div>
-  <div class="card-meta">imported by 11 files</div>
-  <div class="hot-bar" style="width:17%"></div>
-</div>
-<div class="card">
-  <div class="card-title" style="font-size:.9rem">modules/io/src/main/scala/de/nowchess/io/fen/FenParser.scala</div>
-  <div class="card-meta">imported by 10 files</div>
-  <div class="hot-bar" style="width:16%"></div>
-</div>
-<div class="card">
-  <div class="card-title" style="font-size:.9rem">modules/api/src/main/scala/de/nowchess/api/board/CastlingRights.scala</div>
-  <div class="card-meta">imported by 9 files</div>
-  <div class="hot-bar" style="width:14%"></div>
-</div>
-<div class="card">
-  <div class="card-title" style="font-size:.9rem">modules/api/src/main/scala/de/nowchess/api/game/DrawReason.scala</div>
-  <div class="card-meta">imported by 7 files</div>
-  <div class="hot-bar" style="width:11%"></div>
-</div>
-</div>
-</div>
-
-
-<div class="section">
-<h2>Environment Variables</h2>
-<table>
-<tr><th>Variable</th><th>Status</th><th>Source</th></tr>
-<tr>
-  <td><code>STOCKFISH_PATH</code></td>
-  <td><span class="env-required">required</span></td>
-  <td class="card-meta">modules/bot/python/nnue.py</td>
-</tr>
-</table>
-</div>
-
-
-<div class="section">
-<h2>Middleware</h2>
-<div class="grid">
-<div class="card">
-  <div class="card-title">generate <span class="tag tag-custom">custom</span></div>
-  <div class="card-meta">modules/bot/python/src/generate.py</div>
-</div>
-</div>
-</div>
-
-<div class="footer">
-  Generated by <a href="https://github.com/Houseofmvps/codesight">codesight</a> — see your codebase clearly
-</div>
-
-</body>
-</html>

.github/workflows/native-image.yml

@@ -1,87 +0,0 @@
-name: Build & Push Native Image
-
-on:
-  push:
-    branches:
-      - main
-  workflow_dispatch:
-
-jobs:
-  check-actor:
-    runs-on: ubuntu-latest
-    outputs:
-      allowed: ${{ steps.check.outputs.allowed }}
-    steps:
-      - id: check
-        run: |
-          if [[ "${{ github.event_name }}" == "workflow_dispatch" || "${{ github.actor }}" == "TeamCity" ]]; then
-            echo "allowed=true" >> "$GITHUB_OUTPUT"
-          else
-            echo "allowed=false" >> "$GITHUB_OUTPUT"
-          fi
-
-  build-and-push:
-    needs: check-actor
-    if: needs.check-actor.outputs.allowed == 'true'
-    runs-on: ubuntu-latest
-    permissions:
-      contents: read
-      packages: write
-
-    strategy:
-      matrix:
-        module:
-          - core
-          - io
-
-    steps:
-      - uses: actions/checkout@v4
-
-      - name: Set up GraalVM
-        uses: graalvm/setup-graalvm@v1
-        with:
-          java-version: '21'
-          distribution: 'graalvm-community'
-          native-image-job-reports: 'true'
-
-      - name: Cache Gradle packages
-        uses: actions/cache@v4
-        with:
-          path: |
-            ~/.gradle/caches
-            ~/.gradle/wrapper
-          key: gradle-${{ runner.os }}-${{ hashFiles('**/*.gradle*', '**/gradle-wrapper.properties') }}
-          restore-keys: gradle-${{ runner.os }}-
-
-      - name: Build native binary
-        run: ./gradlew :modules:${{ matrix.module }}:build -Dquarkus.native.enabled=true --no-daemon
-
-      - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
-
-      - name: Log in to GitHub Container Registry
-        uses: docker/login-action@v3
-        with:
-          registry: ghcr.io
-          username: ${{ github.actor }}
-          password: ${{ secrets.GITHUB_TOKEN }}
-
-      - name: Extract metadata
-        id: meta
-        uses: docker/metadata-action@v5
-        with:
-          images: ghcr.io/now-chess/now-chess-systems/${{ matrix.module }}
-          tags: |
-            type=sha,prefix=,format=short
-            type=raw,value=latest
-
-      - name: Build and push
-        uses: docker/build-push-action@v6
-        with:
-          context: .
-          file: modules/${{ matrix.module }}/src/main/docker/Dockerfile.native
-          push: true
-          tags: ${{ steps.meta.outputs.tags }}
-          labels: ${{ steps.meta.outputs.labels }}
-          cache-from: type=gha,scope=${{ matrix.module }}
-          cache-to: type=gha,mode=max,scope=${{ matrix.module }}

.idea/.gitignore

@@ -8,5 +8,3 @@
 /dataSources.local.xml
 # Editor-based HTTP Client requests
 /httpRequests/
-
-sonarlint.xml

.idea/codeStyles/Project.xml

@@ -1,133 +0,0 @@
-<component name="ProjectCodeStyleConfiguration">
-  <code_scheme name="Project" version="173">
-    <AndroidXmlCodeStyleSettings>
-      <option name="USE_CUSTOM_SETTINGS" value="true" />
-    </AndroidXmlCodeStyleSettings>
-    <JetCodeStyleSettings>
-      <option name="CODE_STYLE_DEFAULTS" value="KOTLIN_OFFICIAL" />
-    </JetCodeStyleSettings>
-    <ScalaCodeStyleSettings>
-      <option name="FORMATTER" value="1" />
-    </ScalaCodeStyleSettings>
-    <XML>
-      <option name="XML_KEEP_LINE_BREAKS" value="false" />
-      <option name="XML_ALIGN_ATTRIBUTES" value="false" />
-      <option name="XML_SPACE_INSIDE_EMPTY_TAG" value="true" />
-    </XML>
-    <codeStyleSettings language="XML">
-      <option name="FORCE_REARRANGE_MODE" value="1" />
-      <indentOptions>
-        <option name="CONTINUATION_INDENT_SIZE" value="4" />
-      </indentOptions>
-      <arrangement>
-        <rules>
-          <section>
-            <rule>
-              <match>
-                <AND>
-                  <NAME>xmlns:android</NAME>
-                  <XML_ATTRIBUTE />
-                  <XML_NAMESPACE>^$</XML_NAMESPACE>
-                </AND>
-              </match>
-            </rule>
-          </section>
-          <section>
-            <rule>
-              <match>
-                <AND>
-                  <NAME>xmlns:.*</NAME>
-                  <XML_ATTRIBUTE />
-                  <XML_NAMESPACE>^$</XML_NAMESPACE>
-                </AND>
-              </match>
-              <order>BY_NAME</order>
-            </rule>
-          </section>
-          <section>
-            <rule>
-              <match>
-                <AND>
-                  <NAME>.*:id</NAME>
-                  <XML_ATTRIBUTE />
-                  <XML_NAMESPACE>http://schemas.android.com/apk/res/android</XML_NAMESPACE>
-                </AND>
-              </match>
-            </rule>
-          </section>
-          <section>
-            <rule>
-              <match>
-                <AND>
-                  <NAME>.*:name</NAME>
-                  <XML_ATTRIBUTE />
-                  <XML_NAMESPACE>http://schemas.android.com/apk/res/android</XML_NAMESPACE>
-                </AND>
-              </match>
-            </rule>
-          </section>
-          <section>
-            <rule>
-              <match>
-                <AND>
-                  <NAME>name</NAME>
-                  <XML_ATTRIBUTE />
-                  <XML_NAMESPACE>^$</XML_NAMESPACE>
-                </AND>
-              </match>
-            </rule>
-          </section>
-          <section>
-            <rule>
-              <match>
-                <AND>
-                  <NAME>style</NAME>
-                  <XML_ATTRIBUTE />
-                  <XML_NAMESPACE>^$</XML_NAMESPACE>
-                </AND>
-              </match>
-            </rule>
-          </section>
-          <section>
-            <rule>
-              <match>
-                <AND>
-                  <NAME>.*</NAME>
-                  <XML_ATTRIBUTE />
-                  <XML_NAMESPACE>^$</XML_NAMESPACE>
-                </AND>
-              </match>
-              <order>BY_NAME</order>
-            </rule>
-          </section>
-          <section>
-            <rule>
-              <match>
-                <AND>
-                  <NAME>.*</NAME>
-                  <XML_ATTRIBUTE />
-                  <XML_NAMESPACE>http://schemas.android.com/apk/res/android</XML_NAMESPACE>
-                </AND>
-              </match>
-            </rule>
-          </section>
-          <section>
-            <rule>
-              <match>
-                <AND>
-                  <NAME>.*</NAME>
-                  <XML_ATTRIBUTE />
-                  <XML_NAMESPACE>.*</XML_NAMESPACE>
-                </AND>
-              </match>
-              <order>BY_NAME</order>
-            </rule>
-          </section>
-        </rules>
-      </arrangement>
-    </codeStyleSettings>
-    <codeStyleSettings language="kotlin">
-      <option name="CODE_STYLE_DEFAULTS" value="KOTLIN_OFFICIAL" />
-    </codeStyleSettings>
-  </code_scheme>
-</component>

.idea/codeStyles/codeStyleConfig.xml

@@ -1,5 +1,5 @@
 <component name="ProjectCodeStyleConfiguration">
   <state>
-    <option name="USE_PER_PROJECT_SETTINGS" value="true" />
+    <option name="PREFERRED_PROJECT_CODE_STYLE" value="Default" />
   </state>
 </component>

.idea/gradle.xml

@@ -11,10 +11,11 @@
             <option value="$PROJECT_DIR$" />
             <option value="$PROJECT_DIR$/modules" />
             <option value="$PROJECT_DIR$/modules/api" />
-            <option value="$PROJECT_DIR$/modules/bot" />
+            <option value="$PROJECT_DIR$/modules/backcore" />
             <option value="$PROJECT_DIR$/modules/core" />
             <option value="$PROJECT_DIR$/modules/io" />
             <option value="$PROJECT_DIR$/modules/rule" />
+            <option value="$PROJECT_DIR$/modules/ui" />
           </set>
         </option>
       </GradleProjectSettings>

.idea/runConfigurations/NowChessSystems_modules_core_main.xml

@@ -1,33 +0,0 @@
-<component name="ProjectRunConfigurationManager">
-  <configuration default="false" name="NowChessSystems.modules.core.main" type="QuarkusRunConfigurationType" factoryName="Quarkus" nameIsGenerated="true">
-    <module name="NowChessSystems.modules.core.main" />
-    <QsGradleRunConfiguration>
-      <ExternalSystemSettings>
-        <option name="executionName" />
-        <option name="externalProjectPath" value="$PROJECT_DIR$/modules/core" />
-        <option name="externalSystemIdString" value="GRADLE" />
-        <option name="scriptParameters" />
-        <option name="taskDescriptions">
-          <list />
-        </option>
-        <option name="taskNames">
-          <list>
-            <option value="quarkusDev" />
-          </list>
-        </option>
-        <option name="vmOptions" />
-      </ExternalSystemSettings>
-      <ExternalSystemDebugServerProcess>true</ExternalSystemDebugServerProcess>
-      <ExternalSystemReattachDebugProcess>true</ExternalSystemReattachDebugProcess>
-      <ExternalSystemDebugDisabled>false</ExternalSystemDebugDisabled>
-      <DebugAllEnabled>false</DebugAllEnabled>
-      <RunAsTest>false</RunAsTest>
-      <GradleProfilingDisabled>false</GradleProfilingDisabled>
-      <GradleCoverageDisabled>false</GradleCoverageDisabled>
-      <profile>dev</profile>
-    </QsGradleRunConfiguration>
-    <method v="2">
-      <option name="Make" enabled="true" />
-    </method>
-  </configuration>
-</component>

.idea/scala_compiler.xml

@@ -5,7 +5,7 @@
       <option name="deprecationWarnings" value="true" />
       <option name="uncheckedWarnings" value="true" />
     </profile>
-    <profile name="Gradle 2" modules="NowChessSystems.modules.bot.main,NowChessSystems.modules.bot.scoverage,NowChessSystems.modules.bot.test,NowChessSystems.modules.core.integrationTest,NowChessSystems.modules.core.main,NowChessSystems.modules.core.native-test,NowChessSystems.modules.core.quarkus-generated-sources,NowChessSystems.modules.core.quarkus-test-generated-sources,NowChessSystems.modules.core.scoverage,NowChessSystems.modules.core.test,NowChessSystems.modules.io.integrationTest,NowChessSystems.modules.io.main,NowChessSystems.modules.io.native-test,NowChessSystems.modules.io.quarkus-generated-sources,NowChessSystems.modules.io.quarkus-test-generated-sources,NowChessSystems.modules.io.scoverage,NowChessSystems.modules.io.test,NowChessSystems.modules.rule.main,NowChessSystems.modules.rule.scoverage,NowChessSystems.modules.rule.test,NowChessSystems.modules.ui.main,NowChessSystems.modules.ui.scoverage,NowChessSystems.modules.ui.test">
+    <profile name="Gradle 2" modules="NowChessSystems.modules.backcore.integrationTest,NowChessSystems.modules.backcore.main,NowChessSystems.modules.backcore.native-test,NowChessSystems.modules.backcore.quarkus-generated-sources,NowChessSystems.modules.backcore.quarkus-test-generated-sources,NowChessSystems.modules.backcore.scoverage,NowChessSystems.modules.backcore.test,NowChessSystems.modules.core.main,NowChessSystems.modules.core.scoverage,NowChessSystems.modules.core.test,NowChessSystems.modules.io.main,NowChessSystems.modules.io.scoverage,NowChessSystems.modules.io.test,NowChessSystems.modules.rule.main,NowChessSystems.modules.rule.scoverage,NowChessSystems.modules.rule.test,NowChessSystems.modules.ui.main,NowChessSystems.modules.ui.scoverage,NowChessSystems.modules.ui.test">
       <option name="deprecationWarnings" value="true" />
       <option name="uncheckedWarnings" value="true" />
       <parameters>

.idea/scala_settings.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ScalaProjectSettings">
+    <option name="scala3DisclaimerShown" value="true" />
+  </component>
+</project>

CLAUDE.md

@@ -9,9 +9,8 @@ Scala 3.5.1 · Gradle 9
 ./compile    # Compile all modules — always run
 ./test       # Run all tests
 ./coverage   # Check coverage
-./lint       # Run linters
 ```
-Use consistently.
+Try to stick to these commands for consistency.
 
 ## Modules
 
@@ -20,20 +19,19 @@ Use consistently.
 | `api`  | Model / shared types | (none) |
 | `core` | Primary business logic | api, rule |
 | `rule` | Game rules | api |
-| `bot`  | Bots and AI | api,rule,io |
 | `io`   | Export formats | api, core |
 | `ui`   | Entrypoint & UI | core, io |
 
 ## Style
 
-- Immutable data, pure functions.
-- Functions under 30 lines. Need "and"? Split it.
-- Cyclomatic complexity under 15.
-- No comments. Names carry intent. Comment non-obvious algorithms only.
-- Scan duplicated logic. Extract.
+- Use immutable data and pure functions.
+- Keep functions under 30 lines. If you need "and" to describe it, split it.
+- Keep cyclomatic complexity under 15.
+- Avoid comments. Let names carry intent; comment only non-obvious algorithms.
+- Scan for duplicated logic before finishing. Extract it.
 - Follow default Sonar style for Scala.
-- `Option`/`Either` for fallible ops. Skip exceptions for control flow.
-- Naming: types PascalCase, functions/values camelCase.
+- Use `Option` or `Either` for fallible operations; avoid exceptions for control flow.
+- Naming: types are PascalCase, functions/values are camelCase.
 
 ## Code Quality
 
@@ -41,23 +39,20 @@ Use consistently.
 
 ### Linters
 
-- **scalafmt** — Enforces formatting. Check: `./gradlew spotlessScalaCheck`. Refactor: `./gradlew spotlessScalaApply`.
-- **scalafix** — Enforces style, detects unused imports/code. Run: `./gradlew scalafix`.
+- **scalafmt** — enforces formatting; run `./gradlew spotlessScalaCheck` to check and `./gradlew spotlessScalaApply` to refactor.
+- **scalafix** — enforces style and detects unused imports/code; run `./gradlew scalafix` to apply rules.
 
 ## Architecture Decisions
 
-- **Immutable state as primary model:** GameContext (api) holds board, history, player state—immutable throughout. Each move → new GameContext. Enables undo/redo without side effects.
-- **Observer pattern for UI decoupling:** GameEngine publishes move/state events; CommandInvoker queues moves; UI listens (no polling). GameEngine never imports UI.
-- **RuleSet trait encapsulates rules:** Move generation, check, castling, en passant all in RuleSet impl. GameEngine calls rules as black box; rules don't know rest of core.
-- **Polyglot hash must follow spec index layout:** Piece keys use interleaved mapping `(pieceType * 2 + colorBit)` (black=0, white=1). Castling keys: `768..771`. En-passant file keys: `772..779`, XORed only if side-to-move has capturable en passant. Side-to-move key: `780` (white).
-- **Alpha-beta uses sequential PV search by default:** Parallel split disabled (fixed-window futures removed pruning effectiveness). Sequential PV default. Correctness + pruning quality > speculative parallelism.
-- **Search hash is updated incrementally per move:** Bot search updates Zobrist keys from parent hash with move deltas, not recomputing piece scans per node.
+- **Immutable state as primary model:** GameContext (api) holds board, history, player state — immutable, passed through the system. Each move creates a new GameContext, enabling undo/redo without side effects.
+- **Observer pattern for UI decoupling:** GameEngine publishes move/state events; CommandInvoker queues moves; UI listens to events, not polling. GameEngine never imports UI code.
+- **RuleSet trait encapsulates rules:** Move generation, check, castling, en passant all in RuleSet impl. GameEngine calls rules as a black box; rules don't know about the rest of core.
 
 ## Rules
 
-- **Tests are the spec.** Don't modify to pass. Fix requirements/code. Update only if requirements change.
+- **Tests are the spec.** Never modify tests to pass; modify requirements or code. Update tests only if requirements change.
 - Never read build folders. Ask permission if needed.
-- Keep file current with decisions + conventions.
+- Keep this file up to date with any important decisions or conventions.
 
 ---
 
@@ -65,9 +60,11 @@ Use consistently.
 
 ### Two-Step Rule (mandatory)
 **Step 1 — Orient:** Use wiki articles to find WHERE things live.
-**Step 2 — Verify:** Read source files from wiki BEFORE coding.
+**Step 2 — Verify:** Read the actual source files listed in the wiki article BEFORE writing any code.
 
-Wiki = structural summaries (routes, models, file locations). No function logic, middleware internals, runtime behavior. Don't code from wiki alone—read sources.
+Wiki articles are structural summaries extracted by AST. They show routes, models, and file locations.
+They do NOT show full function logic, middleware internals, or dynamic runtime behavior.
+**Never write or modify code based solely on wiki content — always read source files first.**
 
 Read in order at session start:
 1. `.codesight/wiki/index.md` — orientation map (~200 tokens)
@@ -75,7 +72,8 @@ Read in order at session start:
 3. Domain article (e.g. `.codesight/wiki/auth.md`) → check "Source Files" section → read those files
 4. `.codesight/CODESIGHT.md` — full context map for deep exploration
 
-`[inferred]` routes = regex-detected. Verify sources. ⚠ in wiki? Re-run `codesight --wiki`.
+Routes marked `[inferred]` in wiki articles were detected via regex — verify against source before trusting.
+If any source file shows ⚠ in the wiki, re-run `codesight --wiki` before proceeding.
 
 Or use the codesight MCP server for on-demand queries:
 - `codesight_get_wiki_article` — read a specific wiki article by name
@@ -85,13 +83,13 @@ Or use the codesight MCP server for on-demand queries:
 - `codesight_get_blast_radius --file src/lib/db.ts` — impact analysis before changes
 - `codesight_get_schema --model users` — specific model details
 
-Consult codesight context first. Saves ~16.893 tokens/conversation.
+Only open specific files after consulting codesight context. This saves ~16.893 tokens per conversation.
 
 ## graphify
 
-graphify knowledge graph at graphify-out/.
+This project has a graphify knowledge graph at graphify-out/.
 
 Rules:
-- Architecture/codebase questions? Read graphify-out/GRAPH_REPORT.md (god nodes, communities).
-- graphify-out/wiki/index.md exists? Use it (not raw files).
-- Code modified? Run `python3 -c "from graphify.watch import _rebuild_code; from pathlib import Path; _rebuild_code(Path('.'))"` to sync graph.
+- Before answering architecture or codebase questions, read graphify-out/GRAPH_REPORT.md for god nodes and community structure
+- If graphify-out/wiki/index.md exists, navigate it instead of reading raw files
+- After modifying code files in this session, run `python3 -c "from graphify.watch import _rebuild_code; from pathlib import Path; _rebuild_code(Path('.'))"` to keep the graph current

CLAUDE.original.md

@@ -1,100 +0,0 @@
-# Now-Chess
-
-Scala 3.5.1 · Gradle 9
-
-## Commands
-
-```
-./clean      # Clear build dirs — only when necessary
-./compile    # Compile all modules — always run
-./test       # Run all tests
-./coverage   # Check coverage
-./lint       # Run linters
-```
-Try to stick to these commands for consistency.
-
-## Modules
-
-| Module | Role | Depends on |
-|--------|------|-----------|
-| `api`  | Model / shared types | (none) |
-| `core` | Primary business logic | api, rule |
-| `rule` | Game rules | api |
-| `bot`  | Bots and AI | api,rule,io |
-| `io`   | Export formats | api, core |
-| `ui`   | Entrypoint & UI | core, io |
-
-## Style
-
-- Use immutable data and pure functions.
-- Keep functions under 30 lines. If you need "and" to describe it, split it.
-- Keep cyclomatic complexity under 15.
-- Avoid comments. Let names carry intent; comment only non-obvious algorithms.
-- Scan for duplicated logic before finishing. Extract it.
-- Follow default Sonar style for Scala.
-- Use `Option` or `Either` for fallible operations; avoid exceptions for control flow.
-- Naming: types are PascalCase, functions/values are camelCase.
-
-## Code Quality
-
-- **Coverage:** 100% condition coverage required in `api`, `core`, `rule`, `io` (mandatory); `ui` exempt.
-
-### Linters
-
-- **scalafmt** — enforces formatting; run `./gradlew spotlessScalaCheck` to check and `./gradlew spotlessScalaApply` to refactor.
-- **scalafix** — enforces style and detects unused imports/code; run `./gradlew scalafix` to apply rules.
-
-## Architecture Decisions
-
-- **Immutable state as primary model:** GameContext (api) holds board, history, player state — immutable, passed through the system. Each move creates a new GameContext, enabling undo/redo without side effects.
-- **Observer pattern for UI decoupling:** GameEngine publishes move/state events; CommandInvoker queues moves; UI listens to events, not polling. GameEngine never imports UI code.
-- **RuleSet trait encapsulates rules:** Move generation, check, castling, en passant all in RuleSet impl. GameEngine calls rules as a black box; rules don't know about the rest of core.
-- **Polyglot hash must follow spec index layout:** piece keys use interleaved mapping `(pieceType * 2 + colorBit)` with black=0/white=1, castling keys are `768..771`, en-passant file keys are `772..779` and are XORed only if side-to-move has a pawn that can capture en passant, side-to-move key is `780` for white.
-- **Alpha-beta uses sequential PV search by default:** parallel split was disabled because fixed-window futures removed pruning effectiveness; correctness and pruning quality take priority over speculative parallelism.
-- **Search hash is updated incrementally per move:** bot search now updates Zobrist keys from parent hash with move deltas instead of recomputing piece scans at every node.
-
-## Rules
-
-- **Tests are the spec.** Never modify tests to pass; modify requirements or code. Update tests only if requirements change.
-- Never read build folders. Ask permission if needed.
-- Keep this file up to date with any important decisions or conventions.
-
----
-
-## Instructions for Claude Code
-
-### Two-Step Rule (mandatory)
-**Step 1 — Orient:** Use wiki articles to find WHERE things live.
-**Step 2 — Verify:** Read the actual source files listed in the wiki article BEFORE writing any code.
-
-Wiki articles are structural summaries extracted by AST. They show routes, models, and file locations.
-They do NOT show full function logic, middleware internals, or dynamic runtime behavior.
-**Never write or modify code based solely on wiki content — always read source files first.**
-
-Read in order at session start:
-1. `.codesight/wiki/index.md` — orientation map (~200 tokens)
-2. `.codesight/wiki/overview.md` — architecture overview (~500 tokens)
-3. Domain article (e.g. `.codesight/wiki/auth.md`) → check "Source Files" section → read those files
-4. `.codesight/CODESIGHT.md` — full context map for deep exploration
-
-Routes marked `[inferred]` in wiki articles were detected via regex — verify against source before trusting.
-If any source file shows ⚠ in the wiki, re-run `codesight --wiki` before proceeding.
-
-Or use the codesight MCP server for on-demand queries:
-- `codesight_get_wiki_article` — read a specific wiki article by name
-- `codesight_get_wiki_index` — get the wiki index
-- `codesight_get_summary` — quick project overview
-- `codesight_get_routes --prefix /api/users` — filtered routes
-- `codesight_get_blast_radius --file src/lib/db.ts` — impact analysis before changes
-- `codesight_get_schema --model users` — specific model details
-
-Only open specific files after consulting codesight context. This saves ~16.893 tokens per conversation.
-
-## graphify
-
-This project has a graphify knowledge graph at graphify-out/.
-
-Rules:
-- Before answering architecture or codebase questions, read graphify-out/GRAPH_REPORT.md for god nodes and community structure
-- If graphify-out/wiki/index.md exists, navigate it instead of reading raw files
-- After modifying code files in this session, run `python3 -c "from graphify.watch import _rebuild_code; from pathlib import Path; _rebuild_code(Path('.'))"` to keep the graph current

bruno/board/draw/01 Offer Draw.bru

@@ -1,12 +0,0 @@
-meta {
-  name: Offer Draw
-  type: http
-  seq: 1
-}
-
-http {
-  method: POST
-  url: {{baseUrl}}/api/board/game/{{gameId}}/draw/offer
-  body: none
-  auth: none
-}

bruno/board/draw/02 Accept Draw.bru

@@ -1,12 +0,0 @@
-meta {
-  name: Accept Draw
-  type: http
-  seq: 2
-}
-
-http {
-  method: POST
-  url: {{baseUrl}}/api/board/game/{{gameId}}/draw/accept
-  body: none
-  auth: none
-}

bruno/board/draw/03 Decline Draw.bru

@@ -1,12 +0,0 @@
-meta {
-  name: Decline Draw
-  type: http
-  seq: 3
-}
-
-http {
-  method: POST
-  url: {{baseUrl}}/api/board/game/{{gameId}}/draw/decline
-  body: none
-  auth: none
-}

bruno/board/draw/04 Claim Draw.bru

@@ -1,12 +0,0 @@
-meta {
-  name: Claim Draw
-  type: http
-  seq: 4
-}
-
-http {
-  method: POST
-  url: {{baseUrl}}/api/board/game/{{gameId}}/draw/claim
-  body: none
-  auth: none
-}

bruno/board/draw/folder.bru

@@ -1,4 +0,0 @@
-meta {
-  name: draw
-  seq: 2
-}

bruno/board/export/01 Export FEN.bru

@@ -1,12 +0,0 @@
-meta {
-  name: Export FEN
-  type: http
-  seq: 1
-}
-
-http {
-  method: GET
-  url: {{baseUrl}}/api/board/game/{{gameId}}/export/fen
-  body: none
-  auth: none
-}

bruno/board/export/02 Export PGN.bru

@@ -1,12 +0,0 @@
-meta {
-  name: Export PGN
-  type: http
-  seq: 2
-}
-
-http {
-  method: GET
-  url: {{baseUrl}}/api/board/game/{{gameId}}/export/pgn
-  body: none
-  auth: none
-}

bruno/board/export/folder.bru

@@ -1,4 +0,0 @@
-meta {
-  name: export
-  seq: 6
-}

bruno/board/game/01 Create Game.bru

@@ -1,23 +0,0 @@
-meta {
-  name: Create Game
-  type: http
-  seq: 1
-}
-
-http {
-  method: POST
-  url: {{baseUrl}}/api/board/game
-  body: json
-  auth: none
-}
-
-headers {
-  Content-Type: application/json
-}
-
-body:json {
-  {
-    "white": {"id": "p1", "displayName": "Alice"},
-    "black": {"id": "p2", "displayName": "Bob"}
-  }
-}

bruno/board/game/02 Get Game.bru

@@ -1,12 +0,0 @@
-meta {
-  name: Get Game
-  type: http
-  seq: 2
-}
-
-http {
-  method: GET
-  url: {{baseUrl}}/api/board/game/{{gameId}}
-  body: none
-  auth: none
-}

bruno/board/game/03 Stream Game.bru

@@ -1,19 +0,0 @@
-meta {
-  name: Stream Game
-  type: http
-  seq: 3
-}
-
-get {
-  url: {{baseUrl}}/api/board/game/{{gameId}}/stream
-  body: none
-  auth: none
-}
-
-headers {
-  Accept: application/x-ndjson
-}
-
-vars:pre-request {
-  gameId: tjOgyEcS
-}

bruno/board/game/04 Resign.bru

@@ -1,12 +0,0 @@
-meta {
-  name: Resign
-  type: http
-  seq: 4
-}
-
-http {
-  method: POST
-  url: {{baseUrl}}/api/board/game/{{gameId}}/resign
-  body: none
-  auth: none
-}

bruno/board/game/folder.bru

@@ -1,4 +0,0 @@
-meta {
-  name: game
-  seq: 3
-}

bruno/board/import/01 Import FEN.bru

@@ -1,24 +0,0 @@
-meta {
-  name: Import FEN
-  type: http
-  seq: 1
-}
-
-http {
-  method: POST
-  url: {{baseUrl}}/api/board/game/import/fen
-  body: json
-  auth: none
-}
-
-headers {
-  Content-Type: application/json
-}
-
-body:json {
-  {
-    "fen": "rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq e3 0 1",
-    "white": {"id": "p1", "displayName": "Alice"},
-    "black": {"id": "p2", "displayName": "Bob"}
-  }
-}

bruno/board/import/02 Import PGN.bru

@@ -1,22 +0,0 @@
-meta {
-  name: Import PGN
-  type: http
-  seq: 2
-}
-
-http {
-  method: POST
-  url: {{baseUrl}}/api/board/game/import/pgn
-  body: json
-  auth: none
-}
-
-headers {
-  Content-Type: application/json
-}
-
-body:json {
-  {
-    "pgn": "1. e4 e5 2. Nf3 Nc6 *"
-  }
-}

bruno/board/import/folder.bru

@@ -1,4 +0,0 @@
-meta {
-  name: import
-  seq: 5
-}

bruno/board/move/01 Make Move.bru

@@ -1,15 +0,0 @@
-meta {
-  name: Make Move
-  type: http
-  seq: 1
-}
-
-post {
-  url: {{baseUrl}}/api/board/game/{{gameId}}/move/b1c3
-  body: none
-  auth: none
-}
-
-vars:pre-request {
-  gameId: tjOgyEcS
-}

bruno/board/move/02 Get Legal Moves.bru

@@ -1,19 +0,0 @@
-meta {
-  name: Get Legal Moves
-  type: http
-  seq: 2
-}
-
-get {
-  url: {{baseUrl}}/api/board/game/{{gameId}}/moves
-  body: none
-  auth: none
-}
-
-params:query {
-  square: e2
-}
-
-vars:pre-request {
-  gameId: tjOgyEcS
-}

bruno/board/move/03 Undo Move.bru

@@ -1,12 +0,0 @@
-meta {
-  name: Undo Move
-  type: http
-  seq: 3
-}
-
-http {
-  method: POST
-  url: {{baseUrl}}/api/board/game/{{gameId}}/undo
-  body: none
-  auth: none
-}

bruno/board/move/04 Redo Move.bru

@@ -1,12 +0,0 @@
-meta {
-  name: Redo Move
-  type: http
-  seq: 4
-}
-
-http {
-  method: POST
-  url: {{baseUrl}}/api/board/game/{{gameId}}/redo
-  body: none
-  auth: none
-}

bruno/board/move/folder.bru

@@ -1,3 +0,0 @@
-meta {
-  name: move
-}

bruno/bruno.json

@@ -1,6 +0,0 @@
-{
-  "version": "1",
-  "name": "NowChess API",
-  "type": "collection",
-  "ignore": []
-}

bruno/environments/local.bru

@@ -1,4 +0,0 @@
-vars {
-  baseUrl: http://localhost:8080
-  ioBaseUrl: http://localhost:8081
-}

bruno/io/export/01 Export FEN.bru

@@ -1,100 +0,0 @@
-meta {
-  name: Export FEN
-  type: http
-  seq: 1
-}
-
-http {
-  method: POST
-  url: {{ioBaseUrl}}/io/export/fen
-  body: json
-  auth: none
-}
-
-headers {
-  Content-Type: application/json
-}
-
-body:json {
-  {
-    "board": {
-      "a1": {"color": "White", "pieceType": "Rook"},
-      "b1": {"color": "White", "pieceType": "Knight"},
-      "c1": {"color": "White", "pieceType": "Bishop"},
-      "d1": {"color": "White", "pieceType": "Queen"},
-      "e1": {"color": "White", "pieceType": "King"},
-      "f1": {"color": "White", "pieceType": "Bishop"},
-      "g1": {"color": "White", "pieceType": "Knight"},
-      "h1": {"color": "White", "pieceType": "Rook"},
-      "a2": {"color": "White", "pieceType": "Pawn"},
-      "b2": {"color": "White", "pieceType": "Pawn"},
-      "c2": {"color": "White", "pieceType": "Pawn"},
-      "d2": {"color": "White", "pieceType": "Pawn"},
-      "e2": {"color": "White", "pieceType": "Pawn"},
-      "f2": {"color": "White", "pieceType": "Pawn"},
-      "g2": {"color": "White", "pieceType": "Pawn"},
-      "h2": {"color": "White", "pieceType": "Pawn"},
-      "a7": {"color": "Black", "pieceType": "Pawn"},
-      "b7": {"color": "Black", "pieceType": "Pawn"},
-      "c7": {"color": "Black", "pieceType": "Pawn"},
-      "d7": {"color": "Black", "pieceType": "Pawn"},
-      "e7": {"color": "Black", "pieceType": "Pawn"},
-      "f7": {"color": "Black", "pieceType": "Pawn"},
-      "g7": {"color": "Black", "pieceType": "Pawn"},
-      "h7": {"color": "Black", "pieceType": "Pawn"},
-      "a8": {"color": "Black", "pieceType": "Rook"},
-      "b8": {"color": "Black", "pieceType": "Knight"},
-      "c8": {"color": "Black", "pieceType": "Bishop"},
-      "d8": {"color": "Black", "pieceType": "Queen"},
-      "e8": {"color": "Black", "pieceType": "King"},
-      "f8": {"color": "Black", "pieceType": "Bishop"},
-      "g8": {"color": "Black", "pieceType": "Knight"},
-      "h8": {"color": "Black", "pieceType": "Rook"}
-    },
-    "turn": "White",
-    "castlingRights": {
-      "whiteKingSide": true,
-      "whiteQueenSide": true,
-      "blackKingSide": true,
-      "blackQueenSide": true
-    },
-    "enPassantSquare": null,
-    "halfMoveClock": 0,
-    "moves": [],
-    "result": null,
-    "initialBoard": {
-      "a1": {"color": "White", "pieceType": "Rook"},
-      "b1": {"color": "White", "pieceType": "Knight"},
-      "c1": {"color": "White", "pieceType": "Bishop"},
-      "d1": {"color": "White", "pieceType": "Queen"},
-      "e1": {"color": "White", "pieceType": "King"},
-      "f1": {"color": "White", "pieceType": "Bishop"},
-      "g1": {"color": "White", "pieceType": "Knight"},
-      "h1": {"color": "White", "pieceType": "Rook"},
-      "a2": {"color": "White", "pieceType": "Pawn"},
-      "b2": {"color": "White", "pieceType": "Pawn"},
-      "c2": {"color": "White", "pieceType": "Pawn"},
-      "d2": {"color": "White", "pieceType": "Pawn"},
-      "e2": {"color": "White", "pieceType": "Pawn"},
-      "f2": {"color": "White", "pieceType": "Pawn"},
-      "g2": {"color": "White", "pieceType": "Pawn"},
-      "h2": {"color": "White", "pieceType": "Pawn"},
-      "a7": {"color": "Black", "pieceType": "Pawn"},
-      "b7": {"color": "Black", "pieceType": "Pawn"},
-      "c7": {"color": "Black", "pieceType": "Pawn"},
-      "d7": {"color": "Black", "pieceType": "Pawn"},
-      "e7": {"color": "Black", "pieceType": "Pawn"},
-      "f7": {"color": "Black", "pieceType": "Pawn"},
-      "g7": {"color": "Black", "pieceType": "Pawn"},
-      "h7": {"color": "Black", "pieceType": "Pawn"},
-      "a8": {"color": "Black", "pieceType": "Rook"},
-      "b8": {"color": "Black", "pieceType": "Knight"},
-      "c8": {"color": "Black", "pieceType": "Bishop"},
-      "d8": {"color": "Black", "pieceType": "Queen"},
-      "e8": {"color": "Black", "pieceType": "King"},
-      "f8": {"color": "Black", "pieceType": "Bishop"},
-      "g8": {"color": "Black", "pieceType": "Knight"},
-      "h8": {"color": "Black", "pieceType": "Rook"}
-    }
-  }
-}

bruno/io/export/02 Export PGN.bru

@@ -1,100 +0,0 @@
-meta {
-  name: Export PGN
-  type: http
-  seq: 2
-}
-
-http {
-  method: POST
-  url: {{ioBaseUrl}}/io/export/pgn
-  body: json
-  auth: none
-}
-
-headers {
-  Content-Type: application/json
-}
-
-body:json {
-  {
-    "board": {
-      "a1": {"color": "White", "pieceType": "Rook"},
-      "b1": {"color": "White", "pieceType": "Knight"},
-      "c1": {"color": "White", "pieceType": "Bishop"},
-      "d1": {"color": "White", "pieceType": "Queen"},
-      "e1": {"color": "White", "pieceType": "King"},
-      "f1": {"color": "White", "pieceType": "Bishop"},
-      "g1": {"color": "White", "pieceType": "Knight"},
-      "h1": {"color": "White", "pieceType": "Rook"},
-      "a2": {"color": "White", "pieceType": "Pawn"},
-      "b2": {"color": "White", "pieceType": "Pawn"},
-      "c2": {"color": "White", "pieceType": "Pawn"},
-      "d2": {"color": "White", "pieceType": "Pawn"},
-      "e2": {"color": "White", "pieceType": "Pawn"},
-      "f2": {"color": "White", "pieceType": "Pawn"},
-      "g2": {"color": "White", "pieceType": "Pawn"},
-      "h2": {"color": "White", "pieceType": "Pawn"},
-      "a7": {"color": "Black", "pieceType": "Pawn"},
-      "b7": {"color": "Black", "pieceType": "Pawn"},
-      "c7": {"color": "Black", "pieceType": "Pawn"},
-      "d7": {"color": "Black", "pieceType": "Pawn"},
-      "e7": {"color": "Black", "pieceType": "Pawn"},
-      "f7": {"color": "Black", "pieceType": "Pawn"},
-      "g7": {"color": "Black", "pieceType": "Pawn"},
-      "h7": {"color": "Black", "pieceType": "Pawn"},
-      "a8": {"color": "Black", "pieceType": "Rook"},
-      "b8": {"color": "Black", "pieceType": "Knight"},
-      "c8": {"color": "Black", "pieceType": "Bishop"},
-      "d8": {"color": "Black", "pieceType": "Queen"},
-      "e8": {"color": "Black", "pieceType": "King"},
-      "f8": {"color": "Black", "pieceType": "Bishop"},
-      "g8": {"color": "Black", "pieceType": "Knight"},
-      "h8": {"color": "Black", "pieceType": "Rook"}
-    },
-    "turn": "White",
-    "castlingRights": {
-      "whiteKingSide": true,
-      "whiteQueenSide": true,
-      "blackKingSide": true,
-      "blackQueenSide": true
-    },
-    "enPassantSquare": null,
-    "halfMoveClock": 0,
-    "moves": [],
-    "result": null,
-    "initialBoard": {
-      "a1": {"color": "White", "pieceType": "Rook"},
-      "b1": {"color": "White", "pieceType": "Knight"},
-      "c1": {"color": "White", "pieceType": "Bishop"},
-      "d1": {"color": "White", "pieceType": "Queen"},
-      "e1": {"color": "White", "pieceType": "King"},
-      "f1": {"color": "White", "pieceType": "Bishop"},
-      "g1": {"color": "White", "pieceType": "Knight"},
-      "h1": {"color": "White", "pieceType": "Rook"},
-      "a2": {"color": "White", "pieceType": "Pawn"},
-      "b2": {"color": "White", "pieceType": "Pawn"},
-      "c2": {"color": "White", "pieceType": "Pawn"},
-      "d2": {"color": "White", "pieceType": "Pawn"},
-      "e2": {"color": "White", "pieceType": "Pawn"},
-      "f2": {"color": "White", "pieceType": "Pawn"},
-      "g2": {"color": "White", "pieceType": "Pawn"},
-      "h2": {"color": "White", "pieceType": "Pawn"},
-      "a7": {"color": "Black", "pieceType": "Pawn"},
-      "b7": {"color": "Black", "pieceType": "Pawn"},
-      "c7": {"color": "Black", "pieceType": "Pawn"},
-      "d7": {"color": "Black", "pieceType": "Pawn"},
-      "e7": {"color": "Black", "pieceType": "Pawn"},
-      "f7": {"color": "Black", "pieceType": "Pawn"},
-      "g7": {"color": "Black", "pieceType": "Pawn"},
-      "h7": {"color": "Black", "pieceType": "Pawn"},
-      "a8": {"color": "Black", "pieceType": "Rook"},
-      "b8": {"color": "Black", "pieceType": "Knight"},
-      "c8": {"color": "Black", "pieceType": "Bishop"},
-      "d8": {"color": "Black", "pieceType": "Queen"},
-      "e8": {"color": "Black", "pieceType": "King"},
-      "f8": {"color": "Black", "pieceType": "Bishop"},
-      "g8": {"color": "Black", "pieceType": "Knight"},
-      "h8": {"color": "Black", "pieceType": "Rook"}
-    }
-  }
-}

bruno/io/export/folder.bru

@@ -1,4 +0,0 @@
-meta {
-  name: export
-  seq: 2
-}

bruno/io/import/01 Import FEN.bru

@@ -1,22 +0,0 @@
-meta {
-  name: Import FEN
-  type: http
-  seq: 1
-}
-
-http {
-  method: POST
-  url: {{ioBaseUrl}}/io/import/fen
-  body: json
-  auth: none
-}
-
-headers {
-  Content-Type: application/json
-}
-
-body:json {
-  {
-    "fen": "rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq e3 0 1"
-  }
-}

bruno/io/import/02 Import PGN.bru

@@ -1,22 +0,0 @@
-meta {
-  name: Import PGN
-  type: http
-  seq: 2
-}
-
-http {
-  method: POST
-  url: {{ioBaseUrl}}/io/import/pgn
-  body: json
-  auth: none
-}
-
-headers {
-  Content-Type: application/json
-}
-
-body:json {
-  {
-    "pgn": "1. e4 e5 2. Nf3 Nc6 *"
-  }
-}

bruno/io/import/folder.bru

@@ -1,4 +0,0 @@
-meta {
-  name: import
-  seq: 1
-}

build.gradle.kts

@@ -8,53 +8,6 @@ plugins {
 group = "de.nowchess"
 version = "1.0-SNAPSHOT"
 
-// Canonical coverage exclusions — glob patterns consumed by Sonar directly;
-// converted to scoverage regexes via globToScoverageRegex for instrumentation-time exclusion.
-val coverageExclusions = listOf(
-    // UI renders JavaFX components; headless test environments cannot exercise rendering paths
-    "modules/ui/**",
-    // FastParse macro-generated combinators produce synthetic branches that scoverage marks as uncovered
-    "modules/io/src/main/scala/de/nowchess/io/fen/FenParserFastParse*",
-    // NNUE inference pipeline — coverage requires a trained model file not present in CI
-    "**/bot/**/NNUE.scala",
-    "**/bot/**/NNUEBot.scala",
-    "**/bot/**/EvaluationNNUE.scala",
-    // NBAI binary format loader/writer — error paths require crafted corrupt files; migrator is a one-shot tool
-    "**/bot/**/NbaiLoader.scala",
-    "**/bot/**/NbaiModel.scala",
-    "**/bot/**/NbaiMigrator.scala",
-    "**/bot/**/NbaiWriter.scala",
-    // PolyglotBook — binary I/O and dead-code guards (bit-masked fields can never exceed valid range)
-    "**/bot/**/PolyglotBook.scala",
-    "**/bot/**/MoveOrdering.scala",
-    "**/bot/**/AlphaBetaSearch.scala",
-    // DTO case class synthetic methods (Scala compiler-generated apply/$default params)
-    "**/api/src/main/scala/de/nowchess/api/dto/**Dto.scala",
-    // Core infrastructure: exception classes, config, registry implementation, game entry
-    "**/core/src/main/scala/de/nowchess/chess/exception/**",
-    "**/core/src/main/scala/de/nowchess/chess/config/**",
-    "**/core/src/main/scala/de/nowchess/chess/registry/GameEntry.scala",
-    "**/core/src/main/scala/de/nowchess/chess/registry/GameRegistryImpl.scala",
-    // GameResource — REST integration layer with @Inject var fields; mocking dependencies for unit tests is infeasible with Quarkus DI; integration tests would require @QuarkusTest which Scoverage doesn't instrument
-    "**/core/src/main/scala/de/nowchess/chess/resource/GameResource.scala",
-    // IoResource — same rationale as GameResource; @QuarkusTest not instrumented by Scoverage
-    "**/io/src/main/scala/de/nowchess/io/service/resource/IoResource.scala",
-    // JacksonConfig — Quarkus lifecycle hook, no testable logic beyond ObjectMapper registration
-    "**/io/src/main/scala/de/nowchess/io/service/config/JacksonConfig.scala",
-)
-
-// Converts a Sonar-style glob to a scoverage regex (matched against full source path).
-// Order matters: protect ** before converting lone *, escape dots last.
-fun globToScoverageRegex(glob: String): String =
-    glob
-        .replace("**", "^@")
-        .replace("*", "[^/]*")
-        .replace(".", "\\.")
-        .replace("^@", ".*")
-        .let { ".*$it" }
-
-extra["SCOVERAGE_EXCLUDED"] = coverageExclusions.map(::globToScoverageRegex)
-
 sonar {
     properties {
         property("sonar.projectKey", "Now-Chess-Systems")
@@ -68,22 +21,28 @@ sonar {
             if (report.exists()) report.absolutePath else null
         }.joinToString(",")
 
+        val jacocoReports = subprojects.mapNotNull { subproject ->
+            val report = subproject.file("build/reports/jacoco/test/jacocoTestReport.xml")
+            if (report.exists()) report.absolutePath else null
+        }.joinToString(",")
+
         property("sonar.scala.coverage.reportPaths", scoverageReports)
-        property("sonar.coverage.exclusions", coverageExclusions.joinToString(","))
+        if (jacocoReports.isNotEmpty()) {
+            property("sonar.coverage.jacoco.xmlReportPaths", jacocoReports)
+        }
     }
 }
 
 val versions = mapOf(
     "QUARKUS_SCALA3"        to "1.0.0",
     "SCALA3"                to "3.5.1",
-    "SCALA_LIBRARY"         to "2.13.16",
+    "SCALA_LIBRARY"         to "2.13.18",
     "SCALATEST"             to "3.2.19",
     "SCALATEST_JUNIT"       to "0.1.11",
     "SCOVERAGE"             to "2.1.1",
     "SCALAFX"               to "21.0.0-R32",
     "JAVAFX"                to "21.0.1",
     "JUNIT_BOM"             to "5.13.4",
-    "ONNXRUNTIME"           to "1.19.2",
     "SCALA_PARSER_COMBINATORS" to "2.4.0",
     "FASTPARSE"             to "3.0.2",
     "JACKSON"               to "2.17.2",

docs/api-spec.yaml

@@ -1,6 +1,6 @@
 openapi: 3.0.3
 info:
-  title: NowChess Board API
+  title: NowChess API
   description: |
     REST API for the NowChess application. Designed to feel familiar to users
     of the [lichess API](https://lichess.org/api).
@@ -186,8 +186,11 @@ paths:
         currently to move.
 
         For promotion moves include the target piece as the fifth character:
-        `e7e8q`, `a2a1r`, etc. Promotion moves without the fifth character
-        are rejected with `400 INVALID_MOVE`.
+        `e7e8q`, `a2a1r`, etc.
+
+        If the move results in a pawn reaching the back rank and no promotion
+        character is supplied, the game enters `promotionPending` status and
+        the move is not yet applied — resubmit with the promotion character.
       security:
         - bearerAuth: []
       parameters:
@@ -627,6 +630,7 @@ components:
         | `draw` | Draw agreed or claimed — game over |
         | `drawOffered` | Waiting for the opponent to accept or decline a draw offer |
         | `fiftyMoveAvailable` | Fifty-move rule threshold reached; active player may claim draw |
+        | `promotionPending` | A pawn reached the back rank; awaiting promotion piece selection |
         | `insufficientMaterial` | Neither side has enough pieces to deliver checkmate — game over (draw) |
       enum:
         - started
@@ -637,6 +641,7 @@ components:
         - draw
         - drawOffered
         - fiftyMoveAvailable
+        - promotionPending
         - insufficientMaterial
 
     # -------------------------------------------------------------------------

gradle.properties

@@ -1,4 +1,3 @@
-# Gradle properties
 quarkusPluginId=io.quarkus
 quarkusPluginVersion=3.32.4
 quarkusPlatformGroupId=io.quarkus.platform

jacoco-reporter/test_counter.py

@@ -1,5 +1,5 @@
 import glob,re
-mods=['api','core','io','rule','ui', 'bot']
+mods=['api','core','io','rule','ui']
 tot=0
 for m in mods:
  s=0

lint

@@ -1,3 +0,0 @@
-#! /usr/bin/env bash
-
-./gradlew scalafix spotlessCheck

modules/api/CHANGELOG.md

@@ -34,49 +34,3 @@
 * NCS-14 implemented insufficient moves rule ([#30](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/30)) ([b0399a4](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/b0399a4e489950083066c9538df9a84dcc7a4613))
 * NCS-21 Write Scripts to automate certain tasks ([#15](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/15)) ([8051871](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/80518719d536a087d339fe02530825dc07f8b388))
 * NCS-25 Add linters to keep quality up ([#27](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/27)) ([fd4e67d](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/fd4e67d4f782a7e955822d90cb909d0a81676fb2))
-##  (2026-04-16)
-
-### Features
-
-* NCS-13 Implement Threefold Repetition ([#31](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/31)) ([767d305](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/767d3051a76c266050b6335774d66e2db2273c16))
-* NCS-14 implemented insufficient moves rule ([#30](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/30)) ([b0399a4](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/b0399a4e489950083066c9538df9a84dcc7a4613))
-* NCS-21 Write Scripts to automate certain tasks ([#15](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/15)) ([8051871](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/80518719d536a087d339fe02530825dc07f8b388))
-* NCS-25 Add linters to keep quality up ([#27](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/27)) ([fd4e67d](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/fd4e67d4f782a7e955822d90cb909d0a81676fb2))
-##  (2026-04-19)
-
-### Features
-
-* NCS-13 Implement Threefold Repetition ([#31](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/31)) ([767d305](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/767d3051a76c266050b6335774d66e2db2273c16))
-* NCS-14 implemented insufficient moves rule ([#30](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/30)) ([b0399a4](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/b0399a4e489950083066c9538df9a84dcc7a4613))
-* NCS-21 Write Scripts to automate certain tasks ([#15](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/15)) ([8051871](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/80518719d536a087d339fe02530825dc07f8b388))
-* NCS-25 Add linters to keep quality up ([#27](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/27)) ([fd4e67d](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/fd4e67d4f782a7e955822d90cb909d0a81676fb2))
-* NCS-41 Bot Platform ([#33](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/33)) ([dceab08](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/dceab0875e6d15f7d3958633cf5dd5b29a851b1d))
-##  (2026-04-19)
-
-### Features
-
-* NCS-13 Implement Threefold Repetition ([#31](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/31)) ([767d305](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/767d3051a76c266050b6335774d66e2db2273c16))
-* NCS-14 implemented insufficient moves rule ([#30](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/30)) ([b0399a4](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/b0399a4e489950083066c9538df9a84dcc7a4613))
-* NCS-21 Write Scripts to automate certain tasks ([#15](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/15)) ([8051871](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/80518719d536a087d339fe02530825dc07f8b388))
-* NCS-25 Add linters to keep quality up ([#27](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/27)) ([fd4e67d](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/fd4e67d4f782a7e955822d90cb909d0a81676fb2))
-* NCS-41 Bot Platform ([#33](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/33)) ([dceab08](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/dceab0875e6d15f7d3958633cf5dd5b29a851b1d))
-##  (2026-04-21)
-
-### Features
-
-* NCS-13 Implement Threefold Repetition ([#31](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/31)) ([767d305](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/767d3051a76c266050b6335774d66e2db2273c16))
-* NCS-14 implemented insufficient moves rule ([#30](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/30)) ([b0399a4](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/b0399a4e489950083066c9538df9a84dcc7a4613))
-* NCS-21 Write Scripts to automate certain tasks ([#15](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/15)) ([8051871](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/80518719d536a087d339fe02530825dc07f8b388))
-* NCS-25 Add linters to keep quality up ([#27](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/27)) ([fd4e67d](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/fd4e67d4f782a7e955822d90cb909d0a81676fb2))
-* NCS-37 Quarkus integration ([#35](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/35)) ([5ad5efb](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/5ad5efb41e9df9e3dccb48f96a69f06217ab98e1))
-* NCS-41 Bot Platform ([#33](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/33)) ([dceab08](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/dceab0875e6d15f7d3958633cf5dd5b29a851b1d))
-##  (2026-04-21)
-
-### Features
-
-* NCS-13 Implement Threefold Repetition ([#31](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/31)) ([767d305](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/767d3051a76c266050b6335774d66e2db2273c16))
-* NCS-14 implemented insufficient moves rule ([#30](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/30)) ([b0399a4](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/b0399a4e489950083066c9538df9a84dcc7a4613))
-* NCS-21 Write Scripts to automate certain tasks ([#15](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/15)) ([8051871](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/80518719d536a087d339fe02530825dc07f8b388))
-* NCS-25 Add linters to keep quality up ([#27](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/27)) ([fd4e67d](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/fd4e67d4f782a7e955822d90cb909d0a81676fb2))
-* NCS-37 Quarkus integration ([#35](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/35)) ([5ad5efb](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/5ad5efb41e9df9e3dccb48f96a69f06217ab98e1))
-* NCS-41 Bot Platform ([#33](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/33)) ([dceab08](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/dceab0875e6d15f7d3958633cf5dd5b29a851b1d))

modules/api/build.gradle.kts

@@ -8,8 +8,6 @@ version = "1.0-SNAPSHOT"
 
 @Suppress("UNCHECKED_CAST")
 val versions = rootProject.extra["VERSIONS"] as Map<String, String>
-@Suppress("UNCHECKED_CAST")
-val scoverageExcluded = rootProject.extra["SCOVERAGE_EXCLUDED"] as List<String>
 
 repositories {
     mavenCentral()
@@ -21,7 +19,6 @@ scala {
 
 scoverage {
     scoverageVersion.set(versions["SCOVERAGE"]!!)
-    excludedFiles.set(scoverageExcluded)
 }
 
 configurations.scoverage {
@@ -34,7 +31,7 @@ configurations.scoverage {
 
 dependencies {
 
-    compileOnly("org.scala-lang:scala3-compiler_3") {
+    implementation("org.scala-lang:scala3-compiler_3") {
         version {
             strictly(versions["SCALA3"]!!)
         }

modules/api/src/main/scala/de/nowchess/api/bot/Bot.scala

@@ -1,11 +0,0 @@
-package de.nowchess.api.bot
-
-import de.nowchess.api.game.GameContext
-import de.nowchess.api.move.Move
-
-trait Bot {
-
-  def name: String
-  def nextMove(context: GameContext): Option[Move]
-
-}

modules/api/src/main/scala/de/nowchess/api/dto/ApiErrorDto.scala

@@ -1,3 +0,0 @@
-package de.nowchess.api.dto
-
-final case class ApiErrorDto(code: String, message: String, field: Option[String])

modules/api/src/main/scala/de/nowchess/api/dto/CreateGameRequestDto.scala

@@ -1,6 +0,0 @@
-package de.nowchess.api.dto
-
-final case class CreateGameRequestDto(
-    white: Option[PlayerInfoDto],
-    black: Option[PlayerInfoDto],
-)

modules/api/src/main/scala/de/nowchess/api/dto/ErrorEventDto.scala

@@ -1,6 +0,0 @@
-package de.nowchess.api.dto
-
-final case class ErrorEventDto(`type`: String, error: ApiErrorDto)
-
-object ErrorEventDto:
-  def apply(error: ApiErrorDto): ErrorEventDto = ErrorEventDto("error", error)

modules/api/src/main/scala/de/nowchess/api/dto/GameFullDto.scala

@@ -1,8 +0,0 @@
-package de.nowchess.api.dto
-
-final case class GameFullDto(
-    gameId: String,
-    white: PlayerInfoDto,
-    black: PlayerInfoDto,
-    state: GameStateDto,
-)

modules/api/src/main/scala/de/nowchess/api/dto/GameFullEventDto.scala

@@ -1,6 +0,0 @@
-package de.nowchess.api.dto
-
-final case class GameFullEventDto(`type`: String, game: GameFullDto)
-
-object GameFullEventDto:
-  def apply(game: GameFullDto): GameFullEventDto = GameFullEventDto("gameFull", game)

modules/api/src/main/scala/de/nowchess/api/dto/GameStateDto.scala

@@ -1,12 +0,0 @@
-package de.nowchess.api.dto
-
-final case class GameStateDto(
-    fen: String,
-    pgn: String,
-    turn: String,
-    status: String,
-    winner: Option[String],
-    moves: List[String],
-    undoAvailable: Boolean,
-    redoAvailable: Boolean,
-)

modules/api/src/main/scala/de/nowchess/api/dto/GameStateEventDto.scala

@@ -1,6 +0,0 @@
-package de.nowchess.api.dto
-
-final case class GameStateEventDto(`type`: String, state: GameStateDto)
-
-object GameStateEventDto:
-  def apply(state: GameStateDto): GameStateEventDto = GameStateEventDto("gameState", state)

modules/api/src/main/scala/de/nowchess/api/dto/ImportFenRequest.scala

@@ -1,3 +0,0 @@
-package de.nowchess.api.dto
-
-case class ImportFenRequest(fen: String)

modules/api/src/main/scala/de/nowchess/api/dto/ImportFenRequestDto.scala

@@ -1,7 +0,0 @@
-package de.nowchess.api.dto
-
-final case class ImportFenRequestDto(
-    fen: String,
-    white: Option[PlayerInfoDto],
-    black: Option[PlayerInfoDto],
-)

modules/api/src/main/scala/de/nowchess/api/dto/ImportPgnRequest.scala

@@ -1,3 +0,0 @@
-package de.nowchess.api.dto
-
-case class ImportPgnRequest(pgn: String)

modules/api/src/main/scala/de/nowchess/api/dto/ImportPgnRequestDto.scala

@@ -1,3 +0,0 @@
-package de.nowchess.api.dto
-
-final case class ImportPgnRequestDto(pgn: String)

modules/api/src/main/scala/de/nowchess/api/dto/LegalMoveDto.scala

@@ -1,9 +0,0 @@
-package de.nowchess.api.dto
-
-final case class LegalMoveDto(
-    from: String,
-    to: String,
-    uci: String,
-    moveType: String,
-    promotion: Option[String],
-)

modules/api/src/main/scala/de/nowchess/api/dto/LegalMovesResponseDto.scala

@@ -1,3 +0,0 @@
-package de.nowchess.api.dto
-
-final case class LegalMovesResponseDto(moves: List[LegalMoveDto])

modules/api/src/main/scala/de/nowchess/api/dto/OkResponseDto.scala

@@ -1,3 +0,0 @@
-package de.nowchess.api.dto
-
-final case class OkResponseDto(ok: Boolean = true)

modules/api/src/main/scala/de/nowchess/api/dto/PlayerInfoDto.scala

@@ -1,3 +0,0 @@
-package de.nowchess.api.dto
-
-final case class PlayerInfoDto(id: String, displayName: String)

modules/api/src/main/scala/de/nowchess/api/game/DrawReason.scala

@@ -5,5 +5,4 @@ enum DrawReason:
   case Stalemate
   case InsufficientMaterial
   case FiftyMoveRule
-  case ThreefoldRepetition
   case Agreement

modules/api/src/main/scala/de/nowchess/api/game/GameContext.scala

@@ -1,6 +1,6 @@
 package de.nowchess.api.game
 
-import de.nowchess.api.board.{Board, CastlingRights, Color, PieceType, Square}
+import de.nowchess.api.board.{Board, CastlingRights, Color, Square}
 import de.nowchess.api.move.Move
 
 /** Immutable bundle of complete game state. All state changes produce new GameContext instances.
@@ -13,15 +13,7 @@ case class GameContext(
     halfMoveClock: Int,
     moves: List[Move],
     result: Option[GameResult] = None,
-    initialBoard: Board = Board.initial,
 ):
-  private lazy val whiteKingSquare: Option[Square] =
-    board.pieces.find((_, p) => p.color == Color.White && p.pieceType == PieceType.King).map(_._1)
-  private lazy val blackKingSquare: Option[Square] =
-    board.pieces.find((_, p) => p.color == Color.Black && p.pieceType == PieceType.King).map(_._1)
-  def kingSquare(color: Color): Option[Square] =
-    if color == Color.White then whiteKingSquare else blackKingSquare
-
   /** Create new context with updated board. */
   def withBoard(newBoard: Board): GameContext = copy(board = newBoard)
 

modules/api/src/main/scala/de/nowchess/api/game/Participant.scala

@@ -1,8 +0,0 @@
-package de.nowchess.api.game
-
-import de.nowchess.api.bot.Bot
-import de.nowchess.api.player.PlayerInfo
-
-sealed trait Participant
-final case class Human(playerInfo: PlayerInfo) extends Participant
-final case class BotParticipant(bot: Bot)      extends Participant

modules/api/src/test/scala/de/nowchess/api/game/GameContextTest.scala

@@ -71,9 +71,3 @@ class GameContextTest extends AnyFunSuite with Matchers:
   test("withResult clears result"):
     val ctx = GameContext.initial.withResult(Some(GameResult.Win(Color.Black)))
     ctx.withResult(None).result shouldBe None
-
-  test("kingSquare returns white king position"):
-    GameContext.initial.kingSquare(Color.White) shouldBe Some(Square(File.E, Rank.R1))
-
-  test("kingSquare returns black king position"):
-    GameContext.initial.kingSquare(Color.Black) shouldBe Some(Square(File.E, Rank.R8))

modules/api/versions.env

@@ -1,3 +1,3 @@
 MAJOR=0
-MINOR=10
+MINOR=5
 PATCH=0

modules/backcore/build.gradle.kts

@@ -0,0 +1,101 @@
+plugins {
+    id("scala")
+    id("org.scoverage") version "8.1"
+    id("io.quarkus")
+    id("jacoco")
+}
+
+@Suppress("UNCHECKED_CAST")
+val versions = rootProject.extra["VERSIONS"] as Map<String, String>
+
+repositories {
+    mavenCentral()
+    mavenLocal()
+}
+
+scala {
+    scalaVersion = versions["SCALA3"]!!
+}
+
+scoverage {
+    scoverageVersion.set(versions["SCOVERAGE"]!!)
+}
+
+tasks.withType<ScalaCompile> {
+    scalaCompileOptions.additionalParameters = listOf("-encoding", "UTF-8")
+}
+
+val quarkusPlatformGroupId: String by project
+val quarkusPlatformArtifactId: String by project
+val quarkusPlatformVersion: String by project
+
+dependencies {
+    implementation(project(":modules:api"))
+    implementation(project(":modules:core"))
+    implementation(project(":modules:io"))
+    implementation(project(":modules:rule"))
+
+    implementation(enforcedPlatform("${quarkusPlatformGroupId}:${quarkusPlatformArtifactId}:${quarkusPlatformVersion}"))
+    implementation("io.quarkus:quarkus-rest")
+    implementation("io.quarkus:quarkus-rest-jackson")
+    implementation("io.quarkus:quarkus-config-yaml")
+    implementation("io.quarkus:quarkus-arc")
+
+    implementation("com.fasterxml.jackson.module:jackson-module-scala_3:${versions["JACKSON_SCALA"]!!}")
+
+    testImplementation(platform("org.junit:junit-bom:${versions["JUNIT_BOM"]!!}"))
+    testImplementation("org.junit.jupiter:junit-jupiter")
+    testImplementation("org.scalatest:scalatest_3:${versions["SCALATEST"]!!}")
+    testImplementation("co.helmethair:scalatest-junit-runner:${versions["SCALATEST_JUNIT"]!!}")
+    testImplementation("io.quarkus:quarkus-junit5")
+    testImplementation("io.quarkus:quarkus-jacoco")
+    testImplementation("io.rest-assured:rest-assured")
+    testRuntimeOnly("org.junit.platform:junit-platform-launcher")
+}
+
+configurations.matching { !it.name.startsWith("scoverage") }.configureEach {
+    resolutionStrategy.force("org.scala-lang:scala-library:${versions["SCALA_LIBRARY"]!!}")
+}
+configurations.scoverage {
+    resolutionStrategy.eachDependency {
+        if (requested.group == "org.scoverage" && requested.name.startsWith("scalac-scoverage-plugin_")) {
+            useTarget("${requested.group}:scalac-scoverage-plugin_2.13.16:2.3.0")
+        }
+    }
+}
+
+group = "de.nowchess"
+version = "1.0-SNAPSHOT"
+
+tasks.withType<JavaCompile> {
+    options.encoding = "UTF-8"
+    options.compilerArgs.add("-parameters")
+}
+
+tasks.withType<Jar>().configureEach {
+    duplicatesStrategy = DuplicatesStrategy.EXCLUDE
+}
+
+tasks.test {
+    useJUnitPlatform {
+        includeEngines("scalatest", "junit-jupiter")
+    }
+    testLogging {
+        events("passed", "skipped", "failed")
+    }
+    finalizedBy(tasks.named("jacocoTestReport"))
+}
+
+tasks.jacocoTestReport {
+    dependsOn(tasks.test)
+    executionData.setFrom(layout.buildDirectory.file("jacoco-quarkus.exec"))
+    sourceDirectories.setFrom(files("src/main/scala"))
+    classDirectories.setFrom(files(layout.buildDirectory.dir("classes/scala/main")))
+    reports {
+        xml.required.set(true)
+        xml.outputLocation.set(
+            layout.buildDirectory.file("reports/jacoco/test/jacocoTestReport.xml")
+        )
+        html.required.set(false)
+    }
+}

modules/backcore/src/main/resources/application.yml

@@ -0,0 +1,6 @@
+quarkus:
+  http:
+    port: 8080
+  jacoco:
+    data-file: ${user.dir}/build/jacoco-quarkus.exec
+    report: false

modules/backcore/src/main/scala/de/nowchess/backcore/config/JacksonConfig.scala

@@ -0,0 +1,11 @@
+package de.nowchess.backcore.config
+
+import com.fasterxml.jackson.databind.ObjectMapper
+import com.fasterxml.jackson.module.scala.DefaultScalaModule
+import io.quarkus.jackson.ObjectMapperCustomizer
+import jakarta.inject.Singleton
+
+@Singleton
+class JacksonConfig extends ObjectMapperCustomizer:
+  def customize(mapper: ObjectMapper): Unit =
+    mapper.registerModule(DefaultScalaModule)

modules/backcore/src/main/scala/de/nowchess/backcore/dto/Dtos.scala

@@ -0,0 +1,57 @@
+package de.nowchess.backcore.dto
+
+import com.fasterxml.jackson.annotation.JsonInclude
+import com.fasterxml.jackson.annotation.JsonInclude.Include
+
+case class PlayerInfoDto(id: String, displayName: String)
+
+case class GameStateResponse(
+    fen: String,
+    pgn: String,
+    turn: String,
+    status: String,
+    @JsonInclude(Include.NON_ABSENT) winner: Option[String],
+    moves: List[String],
+    undoAvailable: Boolean,
+    redoAvailable: Boolean,
+)
+
+case class GameFullResponse(
+    gameId: String,
+    white: PlayerInfoDto,
+    black: PlayerInfoDto,
+    state: GameStateResponse,
+)
+
+case class OkResponse(ok: Boolean = true)
+
+@JsonInclude(Include.NON_ABSENT)
+case class ApiErrorResponse(
+    code: String,
+    message: String,
+    field: Option[String] = None,
+)
+
+// Requests
+case class CreateGameRequest(
+    white: Option[PlayerInfoDto] = None,
+    black: Option[PlayerInfoDto] = None,
+)
+
+case class ImportFenRequest(
+    fen: String = "",
+    white: Option[PlayerInfoDto] = None,
+    black: Option[PlayerInfoDto] = None,
+)
+
+case class ImportPgnRequest(pgn: String = "")
+
+case class LegalMoveDto(
+    from: String,
+    to: String,
+    uci: String,
+    moveType: String,
+    @JsonInclude(Include.NON_ABSENT) promotion: Option[String] = None,
+)
+
+case class LegalMovesResponse(moves: List[LegalMoveDto])

modules/backcore/src/main/scala/de/nowchess/backcore/game/GameId.scala

@@ -0,0 +1,10 @@
+package de.nowchess.backcore.game
+
+import java.security.SecureRandom
+
+object GameId:
+  private val chars  = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789"
+  private val random = SecureRandom()
+
+  def generate(): String =
+    (1 to 8).map(_ => chars(random.nextInt(chars.length))).mkString

modules/backcore/src/main/scala/de/nowchess/backcore/game/GameMapper.scala

@@ -0,0 +1,80 @@
+package de.nowchess.backcore.game
+
+import com.fasterxml.jackson.databind.ObjectMapper
+import com.fasterxml.jackson.module.scala.DefaultScalaModule
+import de.nowchess.api.board.Color
+import de.nowchess.api.move.{Move, MoveType, PromotionPiece}
+import de.nowchess.backcore.dto.*
+import de.nowchess.io.fen.FenExporter
+import de.nowchess.io.pgn.PgnExporter
+import de.nowchess.rules.sets.DefaultRules
+
+object GameMapper:
+  private val mapper = new ObjectMapper().registerModule(DefaultScalaModule)
+
+  def toGameFullJson(session: GameSession): String =
+    mapper.writeValueAsString(toGameFull(session))
+
+  def toGameFull(session: GameSession): GameFullResponse =
+    GameFullResponse(
+      gameId = session.gameId,
+      white = toPlayerInfo(session.white),
+      black = toPlayerInfo(session.black),
+      state = toGameState(session),
+    )
+
+  def toGameState(session: GameSession): GameStateResponse =
+    val (status, winner) = computeStatus(session)
+    GameStateResponse(
+      fen = FenExporter.exportGameContext(session.context),
+      pgn = buildPgn(session.context.moves),
+      turn = if session.context.turn == Color.White then "white" else "black",
+      status = status,
+      winner = winner,
+      moves = session.context.moves.map(moveToUci),
+      undoAvailable = session.invoker.canUndo,
+      redoAvailable = session.invoker.canRedo,
+    )
+
+  private def toPlayerInfo(p: de.nowchess.api.player.PlayerInfo): PlayerInfoDto =
+    PlayerInfoDto(id = p.id.value, displayName = p.displayName)
+
+  private def computeStatus(session: GameSession): (String, Option[String]) =
+    session.result match
+      case Some(GameResult.Checkmate(winner)) =>
+        val w = if winner == Color.White then "white" else "black"
+        ("checkmate", Some(w))
+      case Some(GameResult.Stalemate) =>
+        ("stalemate", None)
+      case Some(GameResult.Resign(winner)) =>
+        val w = if winner == Color.White then "white" else "black"
+        ("resign", Some(w))
+      case Some(GameResult.AgreedDraw) | Some(GameResult.FiftyMoveDraw) =>
+        ("draw", None)
+      case Some(GameResult.InsufficientMaterial) =>
+        ("insufficientMaterial", None)
+      case None =>
+        computeLiveStatus(session)
+
+  private def computeLiveStatus(session: GameSession): (String, Option[String]) =
+    val ctx = session.context
+    if DefaultRules.isCheck(ctx) then ("check", None)
+    else if session.drawOfferedBy.isDefined then ("drawOffered", None)
+    else if DefaultRules.isFiftyMoveRule(ctx) then ("fiftyMoveAvailable", None)
+    else ("started", None)
+
+  def moveToUci(move: Move): String =
+    val base = s"${move.from}${move.to}"
+    move.moveType match
+      case MoveType.Promotion(piece) =>
+        val suffix = piece match
+          case PromotionPiece.Queen  => "q"
+          case PromotionPiece.Rook   => "r"
+          case PromotionPiece.Bishop => "b"
+          case PromotionPiece.Knight => "n"
+        base + suffix
+      case _ => base
+
+  private def buildPgn(moves: List[Move]): String =
+    // Use PgnExporter with no headers to get move-text only (SAN notation)
+    PgnExporter.exportGame(Map.empty, moves)

modules/backcore/src/main/scala/de/nowchess/backcore/game/GameResult.scala

@@ -0,0 +1,12 @@
+package de.nowchess.backcore.game
+
+import de.nowchess.api.board.Color
+
+sealed trait GameResult
+object GameResult:
+  case class Checkmate(winner: Color) extends GameResult
+  case object Stalemate               extends GameResult
+  case class Resign(winner: Color)    extends GameResult
+  case object AgreedDraw              extends GameResult
+  case object FiftyMoveDraw           extends GameResult
+  case object InsufficientMaterial    extends GameResult

modules/backcore/src/main/scala/de/nowchess/backcore/game/GameSession.scala

@@ -0,0 +1,16 @@
+package de.nowchess.backcore.game
+
+import de.nowchess.api.board.Color
+import de.nowchess.api.game.GameContext
+import de.nowchess.api.player.PlayerInfo
+import de.nowchess.chess.command.CommandInvoker
+
+case class GameSession(
+    gameId: String,
+    white: PlayerInfo,
+    black: PlayerInfo,
+    context: GameContext,
+    invoker: CommandInvoker,
+    drawOfferedBy: Option[Color] = None,
+    result: Option[GameResult] = None,
+)

modules/backcore/src/main/scala/de/nowchess/backcore/game/GameStore.scala

@@ -0,0 +1,260 @@
+package de.nowchess.backcore.game
+
+import de.nowchess.api.board.{Color, Square}
+import de.nowchess.api.game.GameContext
+import de.nowchess.api.move.{Move, MoveType, PromotionPiece}
+import de.nowchess.api.player.{PlayerId, PlayerInfo}
+import de.nowchess.backcore.dto.{CreateGameRequest, ImportFenRequest, PlayerInfoDto}
+import de.nowchess.chess.command.{CommandInvoker, MoveCommand, MoveResult}
+import de.nowchess.io.fen.FenParser
+import de.nowchess.io.pgn.PgnParser
+import de.nowchess.rules.sets.DefaultRules
+import jakarta.enterprise.context.ApplicationScoped
+
+import scala.collection.mutable
+
+@ApplicationScoped
+class GameStore:
+  private val games: mutable.Map[String, GameSession] = mutable.Map.empty
+
+  // ─── Create / Get ────────────────────────────────────────────────
+
+  def create(req: CreateGameRequest): GameSession = synchronized:
+    val id      = generateId()
+    val session = newSession(id, req.white, req.black, GameContext.initial)
+    games(id) = session
+    session
+
+  def get(id: String): Option[GameSession] = synchronized:
+    games.get(id)
+
+  // ─── Move-making ─────────────────────────────────────────────────
+
+  def applyMove(id: String, uci: String): Either[String, GameSession] = synchronized:
+    withSession(id): session =>
+      if session.result.isDefined then Left("Game is already over")
+      else
+        parseUci(uci) match
+          case None => Left(s"Invalid UCI notation: $uci")
+          case Some((from, to, promotion)) =>
+            val legalCandidates = DefaultRules.legalMoves(session.context)(from)
+            findMatchingMove(legalCandidates, to, promotion) match
+              case None => Left(s"$uci is not a legal move")
+              case Some(move) =>
+                val nextCtx = DefaultRules.applyMove(session.context)(move)
+                val prevCtx = session.context
+                val cmd = MoveCommand(
+                  from = move.from,
+                  to = move.to,
+                  moveResult = Some(MoveResult.Successful(nextCtx, prevCtx.board.pieceAt(move.to))),
+                  previousContext = Some(prevCtx),
+                )
+                session.invoker.execute(cmd)
+                val result  = detectGameOver(nextCtx)
+                val updated = session.copy(context = nextCtx, result = result)
+                games(id) = updated
+                Right(updated)
+
+  def legalMoves(id: String, square: Option[Square]): Either[String, List[Move]] = synchronized:
+    withSession(id): session =>
+      val moves = square match
+        case Some(sq) => DefaultRules.legalMoves(session.context)(sq)
+        case None     => DefaultRules.allLegalMoves(session.context)
+      Right(moves)
+
+  // ─── Undo / Redo ─────────────────────────────────────────────────
+
+  def undo(id: String): Either[String, GameSession] = synchronized:
+    withSession(id): session =>
+      if !session.invoker.canUndo then Left("No moves to undo")
+      else
+        val idx = session.invoker.getCurrentIndex
+        session.invoker.history(idx) match
+          case cmd: MoveCommand =>
+            cmd.previousContext match
+              case None => Left("Cannot undo: no previous context stored")
+              case Some(prevCtx) =>
+                session.invoker.undo()
+                val updated = session.copy(context = prevCtx, result = None, drawOfferedBy = None)
+                games(id) = updated
+                Right(updated)
+          case _ => Left("Cannot undo this command type")
+
+  def redo(id: String): Either[String, GameSession] = synchronized:
+    withSession(id): session =>
+      if !session.invoker.canRedo then Left("No moves to redo")
+      else
+        val idx = session.invoker.getCurrentIndex + 1
+        session.invoker.history(idx) match
+          case cmd: MoveCommand =>
+            cmd.moveResult match
+              case Some(MoveResult.Successful(nextCtx, _)) =>
+                session.invoker.redo()
+                val result  = detectGameOver(nextCtx)
+                val updated = session.copy(context = nextCtx, result = result)
+                games(id) = updated
+                Right(updated)
+              case _ => Left("Cannot redo: move result not available")
+          case _ => Left("Cannot redo this command type")
+
+  // ─── Resign ──────────────────────────────────────────────────────
+
+  def resign(id: String): Either[String, GameSession] = synchronized:
+    withSession(id): session =>
+      if session.result.isDefined then Left("Game is already over")
+      else
+        val winner  = session.context.turn.opposite
+        val updated = session.copy(result = Some(GameResult.Resign(winner)))
+        games(id) = updated
+        Right(updated)
+
+  // ─── Draw actions ────────────────────────────────────────────────
+
+  def drawAction(id: String, action: String): Either[String, GameSession] = synchronized:
+    withSession(id): session =>
+      if session.result.isDefined then Left("Game is already over")
+      else
+        action match
+          case "offer" =>
+            val updated = session.copy(drawOfferedBy = Some(session.context.turn))
+            games(id) = updated
+            Right(updated)
+          case "accept" =>
+            session.drawOfferedBy match
+              case None => Left("No draw offer to accept")
+              case Some(offerer) if offerer == session.context.turn =>
+                Left("Cannot accept your own draw offer")
+              case Some(_) =>
+                val updated = session.copy(result = Some(GameResult.AgreedDraw), drawOfferedBy = None)
+                games(id) = updated
+                Right(updated)
+          case "decline" =>
+            session.drawOfferedBy match
+              case None => Left("No draw offer to decline")
+              case Some(_) =>
+                val updated = session.copy(drawOfferedBy = None)
+                games(id) = updated
+                Right(updated)
+          case "claim" =>
+            if DefaultRules.isFiftyMoveRule(session.context) then
+              val updated = session.copy(result = Some(GameResult.FiftyMoveDraw))
+              games(id) = updated
+              Right(updated)
+            else Left("Fifty-move rule has not been triggered")
+          case other => Left(s"Unknown draw action: $other")
+
+  // ─── Import ──────────────────────────────────────────────────────
+
+  def importFen(req: ImportFenRequest): Either[String, GameSession] = synchronized:
+    FenParser.parseFen(req.fen) match
+      case Left(err) => Left(err)
+      case Right(ctx) =>
+        val id      = generateId()
+        val session = newSession(id, req.white, req.black, ctx)
+        games(id) = session
+        Right(session)
+
+  def importPgn(pgn: String, white: Option[PlayerInfoDto], black: Option[PlayerInfoDto]): Either[String, GameSession] =
+    synchronized:
+      PgnParser.validatePgn(pgn) match
+        case Left(err) => Left(err)
+        case Right(game) =>
+          val id      = generateId()
+          val session = newSession(id, white, black, GameContext.initial)
+          replayIntoSession(session, game.moves, GameContext.initial) match
+            case Left(err) => Left(err)
+            case Right(s) =>
+              games(id) = s
+              Right(s)
+
+  // ─── Private helpers ─────────────────────────────────────────────
+
+  private def withSession[A](id: String)(f: GameSession => Either[String, A]): Either[String, A] =
+    games.get(id) match
+      case None          => Left(s"Game $id not found")
+      case Some(session) => f(session)
+
+  private def generateId(): String =
+    var id = GameId.generate()
+    while games.contains(id) do id = GameId.generate()
+    id
+
+  private def newSession(
+      id: String,
+      white: Option[PlayerInfoDto],
+      black: Option[PlayerInfoDto],
+      ctx: GameContext,
+  ): GameSession =
+    GameSession(
+      gameId = id,
+      white = toPlayerInfo(white, "white", "White"),
+      black = toPlayerInfo(black, "black", "Black"),
+      context = ctx,
+      invoker = new CommandInvoker(),
+    )
+
+  private def toPlayerInfo(dto: Option[PlayerInfoDto], defaultId: String, defaultName: String): PlayerInfo =
+    dto.fold(PlayerInfo(PlayerId(defaultId), defaultName))(d => PlayerInfo(PlayerId(d.id), d.displayName))
+
+  private def parseUci(uci: String): Option[(Square, Square, Option[PromotionPiece])] =
+    if uci.length < 4 || uci.length > 5 then None
+    else
+      for
+        from <- Square.fromAlgebraic(uci.substring(0, 2))
+        to   <- Square.fromAlgebraic(uci.substring(2, 4))
+      yield
+        val promotion = if uci.length == 5 then parsePromotionChar(uci.charAt(4)) else None
+        (from, to, promotion)
+
+  private def parsePromotionChar(c: Char): Option[PromotionPiece] =
+    c match
+      case 'q' => Some(PromotionPiece.Queen)
+      case 'r' => Some(PromotionPiece.Rook)
+      case 'b' => Some(PromotionPiece.Bishop)
+      case 'n' => Some(PromotionPiece.Knight)
+      case _   => None
+
+  private def findMatchingMove(
+      candidates: List[Move],
+      to: Square,
+      promotion: Option[PromotionPiece],
+  ): Option[Move] =
+    candidates.filter(_.to == to) match
+      case Nil => None
+      case moves =>
+        promotion match
+          case Some(pp) => moves.find(_.moveType == MoveType.Promotion(pp))
+          case None =>
+            moves
+              .find(m => !m.moveType.isInstanceOf[MoveType.Promotion])
+              .orElse(moves.headOption)
+
+  private def detectGameOver(ctx: GameContext): Option[GameResult] =
+    if DefaultRules.isCheckmate(ctx) then Some(GameResult.Checkmate(ctx.turn.opposite))
+    else if DefaultRules.isStalemate(ctx) then Some(GameResult.Stalemate)
+    else if DefaultRules.isInsufficientMaterial(ctx) then Some(GameResult.InsufficientMaterial)
+    else None
+
+  private def replayIntoSession(
+      session: GameSession,
+      moves: List[Move],
+      startCtx: GameContext,
+  ): Either[String, GameSession] =
+    moves.foldLeft[Either[String, GameSession]](Right(session)):
+      case (Left(err), _) => Left(err)
+      case (Right(s), move) =>
+        val legal = DefaultRules.legalMoves(s.context)(move.from)
+        legal
+          .find(m => m.from == move.from && m.to == move.to && m.moveType == move.moveType)
+          .orElse(legal.find(m => m.from == move.from && m.to == move.to)) match
+          case None => Left(s"Illegal move in PGN: $move")
+          case Some(legalMove) =>
+            val nextCtx = DefaultRules.applyMove(s.context)(legalMove)
+            val cmd = MoveCommand(
+              from = legalMove.from,
+              to = legalMove.to,
+              moveResult = Some(MoveResult.Successful(nextCtx, s.context.board.pieceAt(legalMove.to))),
+              previousContext = Some(s.context),
+            )
+            s.invoker.execute(cmd)
+            Right(s.copy(context = nextCtx))

modules/backcore/src/main/scala/de/nowchess/backcore/resource/GameResource.scala

@@ -0,0 +1,99 @@
+package de.nowchess.backcore.resource
+
+import de.nowchess.backcore.dto.*
+import de.nowchess.backcore.game.{GameMapper, GameStore}
+import jakarta.enterprise.context.ApplicationScoped
+import jakarta.inject.Inject
+import jakarta.ws.rs.*
+import jakarta.ws.rs.core.{MediaType, Response}
+
+@Path("/api/board/game")
+@Produces(Array(MediaType.APPLICATION_JSON))
+@ApplicationScoped
+class GameResource @Inject() (store: GameStore):
+
+  @POST
+  @Consumes(Array(MediaType.APPLICATION_JSON))
+  def createGame(req: CreateGameRequest): Response =
+    val session = store.create(Option(req).getOrElse(CreateGameRequest()))
+    Response.status(201).entity(GameMapper.toGameFull(session)).build()
+
+  @GET
+  @Path("/{gameId}")
+  def getGame(@PathParam("gameId") gameId: String): Response =
+    store.get(gameId) match
+      case Some(session) => Response.ok(GameMapper.toGameFull(session)).build()
+      case None =>
+        Response
+          .status(404)
+          .entity(ApiErrorResponse("GAME_NOT_FOUND", s"Game $gameId not found"))
+          .build()
+
+  @GET
+  @Path("/{gameId}/stream")
+  @Produces(Array("application/x-ndjson"))
+  def streamGame(@PathParam("gameId") gameId: String): Response =
+    store.get(gameId) match
+      case None =>
+        Response
+          .status(404)
+          .`type`(MediaType.APPLICATION_JSON)
+          .entity(ApiErrorResponse("GAME_NOT_FOUND", s"Game $gameId not found"))
+          .build()
+      case Some(session) =>
+        // Simplified: return a single-line NDJSON snapshot of the current game state
+        val event = s"""{"type":"gameFull","game":${GameMapper.toGameFullJson(session)}}"""
+        Response.ok(event + "\n").build()
+
+  @POST
+  @Path("/{gameId}/resign")
+  def resignGame(@PathParam("gameId") gameId: String): Response =
+    store.resign(gameId) match
+      case Right(_) => Response.ok(OkResponse()).build()
+      case Left(err) if err.contains("not found") =>
+        Response.status(404).entity(ApiErrorResponse("GAME_NOT_FOUND", err)).build()
+      case Left(err) =>
+        Response.status(400).entity(ApiErrorResponse("RESIGN_ERROR", err)).build()
+
+  @POST
+  @Path("/{gameId}/draw/{action}")
+  def drawAction(
+      @PathParam("gameId") gameId: String,
+      @PathParam("action") action: String,
+  ): Response =
+    store.drawAction(gameId, action) match
+      case Right(_) => Response.ok(OkResponse()).build()
+      case Left(err) if err.contains("not found") =>
+        Response.status(404).entity(ApiErrorResponse("GAME_NOT_FOUND", err)).build()
+      case Left(err) =>
+        Response.status(400).entity(ApiErrorResponse("DRAW_ERROR", err)).build()
+
+  @GET
+  @Path("/{gameId}/export/fen")
+  @Produces(Array(MediaType.TEXT_PLAIN))
+  def exportFen(@PathParam("gameId") gameId: String): Response =
+    store.get(gameId) match
+      case None =>
+        Response
+          .status(404)
+          .`type`(MediaType.APPLICATION_JSON)
+          .entity(ApiErrorResponse("GAME_NOT_FOUND", s"Game $gameId not found"))
+          .build()
+      case Some(session) =>
+        import de.nowchess.io.fen.FenExporter
+        Response.ok(FenExporter.exportGameContext(session.context)).build()
+
+  @GET
+  @Path("/{gameId}/export/pgn")
+  @Produces(Array("application/x-chess-pgn"))
+  def exportPgn(@PathParam("gameId") gameId: String): Response =
+    store.get(gameId) match
+      case None =>
+        Response
+          .status(404)
+          .`type`(MediaType.APPLICATION_JSON)
+          .entity(ApiErrorResponse("GAME_NOT_FOUND", s"Game $gameId not found"))
+          .build()
+      case Some(session) =>
+        import de.nowchess.io.pgn.PgnExporter
+        Response.ok(PgnExporter.exportGameContext(session.context)).build()

modules/backcore/src/main/scala/de/nowchess/backcore/resource/ImportResource.scala

@@ -0,0 +1,29 @@
+package de.nowchess.backcore.resource
+
+import de.nowchess.backcore.dto.{ApiErrorResponse, ImportFenRequest, ImportPgnRequest}
+import de.nowchess.backcore.game.{GameMapper, GameStore}
+import jakarta.enterprise.context.ApplicationScoped
+import jakarta.inject.Inject
+import jakarta.ws.rs.*
+import jakarta.ws.rs.core.{MediaType, Response}
+
+@Path("/api/board/game/import")
+@Produces(Array(MediaType.APPLICATION_JSON))
+@Consumes(Array(MediaType.APPLICATION_JSON))
+@ApplicationScoped
+class ImportResource @Inject() (store: GameStore):
+
+  @POST
+  @Path("/fen")
+  def importFen(req: ImportFenRequest): Response =
+    store.importFen(Option(req).getOrElse(ImportFenRequest())) match
+      case Right(session) => Response.status(201).entity(GameMapper.toGameFull(session)).build()
+      case Left(err)      => Response.status(400).entity(ApiErrorResponse("INVALID_FEN", err)).build()
+
+  @POST
+  @Path("/pgn")
+  def importPgn(req: ImportPgnRequest): Response =
+    val body = Option(req).getOrElse(ImportPgnRequest())
+    store.importPgn(body.pgn, None, None) match
+      case Right(session) => Response.status(201).entity(GameMapper.toGameFull(session)).build()
+      case Left(err)      => Response.status(400).entity(ApiErrorResponse("INVALID_PGN", err)).build()

modules/backcore/src/main/scala/de/nowchess/backcore/resource/MoveResource.scala

@@ -0,0 +1,87 @@
+package de.nowchess.backcore.resource
+
+import de.nowchess.api.board.Square
+import de.nowchess.api.move.{Move, MoveType, PromotionPiece}
+import de.nowchess.backcore.dto.*
+import de.nowchess.backcore.game.{GameMapper, GameStore}
+import jakarta.enterprise.context.ApplicationScoped
+import jakarta.inject.Inject
+import jakarta.ws.rs.*
+import jakarta.ws.rs.core.{MediaType, Response}
+
+@Path("/api/board/game")
+@Produces(Array(MediaType.APPLICATION_JSON))
+@ApplicationScoped
+class MoveResource @Inject() (store: GameStore):
+
+  @POST
+  @Path("/{gameId}/move/{uci}")
+  def makeMove(
+      @PathParam("gameId") gameId: String,
+      @PathParam("uci") uci: String,
+  ): Response =
+    store.applyMove(gameId, uci) match
+      case Right(session) => Response.ok(GameMapper.toGameState(session)).build()
+      case Left(err) if err.contains("not found") =>
+        Response.status(404).entity(ApiErrorResponse("GAME_NOT_FOUND", err)).build()
+      case Left(err) =>
+        Response.status(400).entity(ApiErrorResponse("INVALID_MOVE", err)).build()
+
+  @GET
+  @Path("/{gameId}/moves")
+  def getLegalMoves(
+      @PathParam("gameId") gameId: String,
+      @QueryParam("square") squareParam: String,
+  ): Response =
+    val square = Option(squareParam).flatMap(Square.fromAlgebraic)
+    store.legalMoves(gameId, square) match
+      case Right(moves) =>
+        val dtos = moves.map(toLegalMoveDto)
+        Response.ok(LegalMovesResponse(dtos)).build()
+      case Left(err) if err.contains("not found") =>
+        Response.status(404).entity(ApiErrorResponse("GAME_NOT_FOUND", err)).build()
+      case Left(err) =>
+        Response.status(400).entity(ApiErrorResponse("ERROR", err)).build()
+
+  @POST
+  @Path("/{gameId}/undo")
+  def undoMove(@PathParam("gameId") gameId: String): Response =
+    store.undo(gameId) match
+      case Right(session) => Response.ok(GameMapper.toGameState(session)).build()
+      case Left(err) if err.contains("not found") =>
+        Response.status(404).entity(ApiErrorResponse("GAME_NOT_FOUND", err)).build()
+      case Left(err) =>
+        Response.status(400).entity(ApiErrorResponse("UNDO_NOT_AVAILABLE", err)).build()
+
+  @POST
+  @Path("/{gameId}/redo")
+  def redoMove(@PathParam("gameId") gameId: String): Response =
+    store.redo(gameId) match
+      case Right(session) => Response.ok(GameMapper.toGameState(session)).build()
+      case Left(err) if err.contains("not found") =>
+        Response.status(404).entity(ApiErrorResponse("GAME_NOT_FOUND", err)).build()
+      case Left(err) =>
+        Response.status(400).entity(ApiErrorResponse("REDO_NOT_AVAILABLE", err)).build()
+
+  private def toLegalMoveDto(move: Move): LegalMoveDto =
+    val uci = GameMapper.moveToUci(move)
+    val (moveType, promotion) = move.moveType match
+      case MoveType.Normal(true)    => ("capture", None)
+      case MoveType.Normal(false)   => ("normal", None)
+      case MoveType.CastleKingside  => ("castleKingside", None)
+      case MoveType.CastleQueenside => ("castleQueenside", None)
+      case MoveType.EnPassant       => ("enPassant", None)
+      case MoveType.Promotion(pp) =>
+        val pName = pp match
+          case PromotionPiece.Queen  => "queen"
+          case PromotionPiece.Rook   => "rook"
+          case PromotionPiece.Bishop => "bishop"
+          case PromotionPiece.Knight => "knight"
+        ("promotion", Some(pName))
+    LegalMoveDto(
+      from = move.from.toString,
+      to = move.to.toString,
+      uci = uci,
+      moveType = moveType,
+      promotion = promotion,
+    )

modules/backcore/src/test/scala/de/nowchess/backcore/BackcoreStartupTest.scala

@@ -0,0 +1,11 @@
+package de.nowchess.backcore
+
+import io.quarkus.test.junit.QuarkusTest
+import org.junit.jupiter.api.Test
+
+@QuarkusTest
+class BackcoreStartupTest:
+  @Test
+  def applicationStarts(): Unit =
+    // If we get here the Quarkus container started successfully
+    ()

modules/backcore/src/test/scala/de/nowchess/backcore/resource/GameResourceTest.scala

@@ -0,0 +1,67 @@
+package de.nowchess.backcore.resource
+
+import io.quarkus.test.junit.QuarkusTest
+import io.restassured.RestAssured
+import org.hamcrest.Matchers.{equalTo, matchesPattern, notNullValue}
+import org.junit.jupiter.api.Test
+
+@QuarkusTest
+class GameResourceTest:
+
+  @Test
+  def createGameReturns201WithGameId(): Unit =
+    RestAssured
+      .`given`()
+      .contentType("application/json")
+      .body("{}")
+      .when()
+      .post("/api/board/game")
+      .`then`()
+      .statusCode(201)
+      .body("gameId", matchesPattern("[A-Za-z0-9]{8}"))
+      .body("state.fen", notNullValue())
+      .body("state.turn", equalTo("white"))
+      .body("state.status", equalTo("started"))
+
+  @Test
+  def createGameWithPlayersReturns201(): Unit =
+    RestAssured
+      .`given`()
+      .contentType("application/json")
+      .body("""{"white":{"id":"p1","displayName":"Alice"},"black":{"id":"p2","displayName":"Bob"}}""")
+      .when()
+      .post("/api/board/game")
+      .`then`()
+      .statusCode(201)
+      .body("white.id", equalTo("p1"))
+      .body("black.displayName", equalTo("Bob"))
+
+  @Test
+  def getGameReturns200ForExistingGame(): Unit =
+    val gameId = RestAssured
+      .`given`()
+      .contentType("application/json")
+      .body("{}")
+      .when()
+      .post("/api/board/game")
+      .`then`()
+      .statusCode(201)
+      .extract()
+      .path[String]("gameId")
+
+    RestAssured
+      .`given`()
+      .when()
+      .get(s"/api/board/game/$gameId")
+      .`then`()
+      .statusCode(200)
+      .body("gameId", equalTo(gameId))
+
+  @Test
+  def getGameReturns404ForUnknownId(): Unit =
+    RestAssured
+      .`given`()
+      .when()
+      .get("/api/board/game/XXXXXXXX")
+      .`then`()
+      .statusCode(404)

modules/backcore/src/test/scala/de/nowchess/backcore/resource/ImportExportTest.scala

@@ -0,0 +1,177 @@
+package de.nowchess.backcore.resource
+
+import io.quarkus.test.junit.QuarkusTest
+import io.restassured.RestAssured
+import org.hamcrest.Matchers.{containsString, equalTo, matchesPattern, notNullValue}
+import org.junit.jupiter.api.Test
+
+@QuarkusTest
+class ImportExportTest:
+
+  private val startFen = "rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1"
+
+  // ─── Import FEN ────────────────────────────────────────────────
+
+  @Test
+  def importFenReturns201WithCorrectPosition(): Unit =
+    RestAssured
+      .`given`()
+      .contentType("application/json")
+      .body(s"""{"fen":"$startFen"}""")
+      .when()
+      .post("/api/board/game/import/fen")
+      .`then`()
+      .statusCode(201)
+      .body("gameId", matchesPattern("[A-Za-z0-9]{8}"))
+      .body("state.fen", equalTo(startFen))
+      .body("state.turn", equalTo("white"))
+
+  @Test
+  def importFenWithCustomPositionWorks(): Unit =
+    val fen = "rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq e3 0 1"
+    RestAssured
+      .`given`()
+      .contentType("application/json")
+      .body(s"""{"fen":"$fen"}""")
+      .when()
+      .post("/api/board/game/import/fen")
+      .`then`()
+      .statusCode(201)
+      .body("state.fen", equalTo(fen))
+      .body("state.turn", equalTo("black"))
+
+  @Test
+  def importFenWithInvalidFenReturns400(): Unit =
+    RestAssured
+      .`given`()
+      .contentType("application/json")
+      .body("""{"fen":"not-a-fen"}""")
+      .when()
+      .post("/api/board/game/import/fen")
+      .`then`()
+      .statusCode(400)
+
+  // ─── Import PGN ────────────────────────────────────────────────
+
+  @Test
+  def importPgnReturns201(): Unit =
+    RestAssured
+      .`given`()
+      .contentType("application/json")
+      .body("""{"pgn":"1. e4 e5 2. Nf3 Nc6 *"}""")
+      .when()
+      .post("/api/board/game/import/pgn")
+      .`then`()
+      .statusCode(201)
+      .body("gameId", matchesPattern("[A-Za-z0-9]{8}"))
+      .body("state.turn", equalTo("white"))
+
+  @Test
+  def importPgnWithInvalidPgnReturns400(): Unit =
+    RestAssured
+      .`given`()
+      .contentType("application/json")
+      .body("""{"pgn":"1. z9 *"}""")
+      .when()
+      .post("/api/board/game/import/pgn")
+      .`then`()
+      .statusCode(400)
+
+  // ─── Export FEN ────────────────────────────────────────────────
+
+  @Test
+  def exportFenReturnsStartingFen(): Unit =
+    val gameId = RestAssured
+      .`given`()
+      .contentType("application/json")
+      .body("{}")
+      .when()
+      .post("/api/board/game")
+      .`then`()
+      .statusCode(201)
+      .extract()
+      .path[String]("gameId")
+
+    RestAssured
+      .`given`()
+      .when()
+      .get(s"/api/board/game/$gameId/export/fen")
+      .`then`()
+      .statusCode(200)
+      .body(equalTo(startFen))
+
+  @Test
+  def exportFenOnUnknownGameReturns404(): Unit =
+    RestAssured
+      .`given`()
+      .when()
+      .get("/api/board/game/XXXXXXXX/export/fen")
+      .`then`()
+      .statusCode(404)
+
+  // ─── Export PGN ────────────────────────────────────────────────
+
+  @Test
+  def exportPgnReturnsText(): Unit =
+    val gameId = RestAssured
+      .`given`()
+      .contentType("application/json")
+      .body("{}")
+      .when()
+      .post("/api/board/game")
+      .`then`()
+      .statusCode(201)
+      .extract()
+      .path[String]("gameId")
+
+    RestAssured
+      .`given`()
+      .when()
+      .post(s"/api/board/game/$gameId/move/e2e4")
+      .`then`()
+      .statusCode(200)
+
+    RestAssured
+      .`given`()
+      .when()
+      .get(s"/api/board/game/$gameId/export/pgn")
+      .`then`()
+      .statusCode(200)
+      .body(containsString("e4"))
+
+  // ─── Stream ────────────────────────────────────────────────────
+
+  @Test
+  def streamReturnsNdjsonSnapshot(): Unit =
+    val gameId = RestAssured
+      .`given`()
+      .contentType("application/json")
+      .body("{}")
+      .when()
+      .post("/api/board/game")
+      .`then`()
+      .statusCode(201)
+      .extract()
+      .path[String]("gameId")
+
+    val body = RestAssured
+      .`given`()
+      .when()
+      .get(s"/api/board/game/$gameId/stream")
+      .`then`()
+      .statusCode(200)
+      .contentType("application/x-ndjson")
+      .extract()
+      .body()
+      .asString()
+
+    assert(body.trim.startsWith("""{"type":"gameFull""""), s"Expected gameFull event, got: $body")
+
+  @Test
+  def streamOnUnknownGameReturns404(): Unit =
+    RestAssured
+      .`given`()
+      .when()
+      .get("/api/board/game/XXXXXXXX/stream")
+      .`then`()
+      .statusCode(404)

modules/backcore/src/test/scala/de/nowchess/backcore/resource/MoveResourceTest.scala

@@ -0,0 +1,84 @@
+package de.nowchess.backcore.resource
+
+import io.quarkus.test.junit.QuarkusTest
+import io.restassured.RestAssured
+import org.hamcrest.Matchers.{containsString, empty, equalTo, hasItem, hasItems, not, notNullValue}
+import org.junit.jupiter.api.Test
+
+@QuarkusTest
+class MoveResourceTest:
+
+  private def createGame(): String =
+    RestAssured
+      .`given`()
+      .contentType("application/json")
+      .body("{}")
+      .when()
+      .post("/api/board/game")
+      .`then`()
+      .statusCode(201)
+      .extract()
+      .path[String]("gameId")
+
+  @Test
+  def makeMoveReturns200WithUpdatedFen(): Unit =
+    val gameId = createGame()
+    RestAssured
+      .`given`()
+      .when()
+      .post(s"/api/board/game/$gameId/move/e2e4")
+      .`then`()
+      .statusCode(200)
+      .body("fen", containsString("4P3")) // e4 pawn present in FEN
+      .body("turn", equalTo("black"))
+      .body("moves", hasItem("e2e4"))
+
+  @Test
+  def makeMoveOnUnknownGameReturns404(): Unit =
+    RestAssured
+      .`given`()
+      .when()
+      .post("/api/board/game/XXXXXXXX/move/e2e4")
+      .`then`()
+      .statusCode(404)
+
+  @Test
+  def illegalMoveReturns400(): Unit =
+    val gameId = createGame()
+    RestAssured
+      .`given`()
+      .when()
+      .post(s"/api/board/game/$gameId/move/e2e5") // illegal — pawns can't jump 3 squares
+      .`then`()
+      .statusCode(400)
+
+  @Test
+  def getLegalMovesReturnsNonEmptyList(): Unit =
+    val gameId = createGame()
+    RestAssured
+      .`given`()
+      .when()
+      .get(s"/api/board/game/$gameId/moves")
+      .`then`()
+      .statusCode(200)
+      .body("moves", not(empty()))
+
+  @Test
+  def getLegalMovesFilteredBySquareReturnsCorrectMoves(): Unit =
+    val gameId = createGame()
+    RestAssured
+      .`given`()
+      .when()
+      .get(s"/api/board/game/$gameId/moves?square=e2")
+      .`then`()
+      .statusCode(200)
+      .body("moves.uci", hasItems("e2e3", "e2e4"))
+
+  @Test
+  def getLegalMovesOnUnknownGameReturns404(): Unit =
+    RestAssured
+      .`given`()
+      .when()
+      .get("/api/board/game/XXXXXXXX/moves")
+      .`then`()
+      .statusCode(404)

modules/backcore/src/test/scala/de/nowchess/backcore/resource/ResignDrawTest.scala

@@ -0,0 +1,168 @@
+package de.nowchess.backcore.resource
+
+import io.quarkus.test.junit.QuarkusTest
+import io.restassured.RestAssured
+import org.hamcrest.Matchers.{equalTo, notNullValue}
+import org.junit.jupiter.api.Test
+
+@QuarkusTest
+class ResignDrawTest:
+
+  private def createGame(): String =
+    RestAssured
+      .`given`()
+      .contentType("application/json")
+      .body("{}")
+      .when()
+      .post("/api/board/game")
+      .`then`()
+      .statusCode(201)
+      .extract()
+      .path[String]("gameId")
+
+  // ─── Resign ────────────────────────────────────────────────────
+
+  @Test
+  def resignReturns200(): Unit =
+    val gameId = createGame()
+    RestAssured
+      .`given`()
+      .when()
+      .post(s"/api/board/game/$gameId/resign")
+      .`then`()
+      .statusCode(200)
+      .body("ok", equalTo(true))
+
+  @Test
+  def afterResignGameShowsResignStatusAndWinner(): Unit =
+    val gameId = createGame()
+    RestAssured
+      .`given`()
+      .when()
+      .post(s"/api/board/game/$gameId/resign")
+      .`then`()
+      .statusCode(200)
+
+    RestAssured
+      .`given`()
+      .when()
+      .get(s"/api/board/game/$gameId")
+      .`then`()
+      .statusCode(200)
+      .body("state.status", equalTo("resign"))
+      .body("state.winner", notNullValue())
+
+  @Test
+  def resignOnUnknownGameReturns404(): Unit =
+    RestAssured
+      .`given`()
+      .when()
+      .post("/api/board/game/XXXXXXXX/resign")
+      .`then`()
+      .statusCode(404)
+
+  // ─── Draw ──────────────────────────────────────────────────────
+
+  @Test
+  def offerDrawSetsDrawOfferedStatus(): Unit =
+    val gameId = createGame()
+    RestAssured
+      .`given`()
+      .when()
+      .post(s"/api/board/game/$gameId/draw/offer")
+      .`then`()
+      .statusCode(200)
+      .body("ok", equalTo(true))
+
+    RestAssured
+      .`given`()
+      .when()
+      .get(s"/api/board/game/$gameId")
+      .`then`()
+      .statusCode(200)
+      .body("state.status", equalTo("drawOffered"))
+
+  @Test
+  def acceptDrawAfterOfferSetsDrawStatus(): Unit =
+    val gameId = createGame()
+    // White offers
+    RestAssured
+      .`given`()
+      .when()
+      .post(s"/api/board/game/$gameId/draw/offer")
+      .`then`()
+      .statusCode(200)
+
+    // Black moves so it's black's turn... actually the API doesn't enforce turn-based draw accept.
+    // White offered, so black (opponent) accepts — but since there's no auth, we just call accept.
+    // The GameStore checks drawOfferedBy != turn to allow accept.
+    // White offered on white's turn, so black needs to accept — but current turn is still white.
+    // We need to make a move first to switch turns.
+    RestAssured
+      .`given`()
+      .when()
+      .post(s"/api/board/game/$gameId/move/e2e4")
+      .`then`()
+      .statusCode(200)
+
+    // Now it's black's turn and white offered the draw — black accepts
+    RestAssured
+      .`given`()
+      .when()
+      .post(s"/api/board/game/$gameId/draw/accept")
+      .`then`()
+      .statusCode(200)
+      .body("ok", equalTo(true))
+
+    RestAssured
+      .`given`()
+      .when()
+      .get(s"/api/board/game/$gameId")
+      .`then`()
+      .statusCode(200)
+      .body("state.status", equalTo("draw"))
+
+  @Test
+  def declineDrawClearsOffer(): Unit =
+    val gameId = createGame()
+    RestAssured
+      .`given`()
+      .when()
+      .post(s"/api/board/game/$gameId/draw/offer")
+      .`then`()
+      .statusCode(200)
+
+    RestAssured
+      .`given`()
+      .when()
+      .post(s"/api/board/game/$gameId/draw/decline")
+      .`then`()
+      .statusCode(200)
+      .body("ok", equalTo(true))
+
+    RestAssured
+      .`given`()
+      .when()
+      .get(s"/api/board/game/$gameId")
+      .`then`()
+      .statusCode(200)
+      .body("state.status", equalTo("started"))
+
+  @Test
+  def acceptWithoutOfferReturns400(): Unit =
+    val gameId = createGame()
+    RestAssured
+      .`given`()
+      .when()
+      .post(s"/api/board/game/$gameId/draw/accept")
+      .`then`()
+      .statusCode(400)
+
+  @Test
+  def drawOnUnknownGameReturns404(): Unit =
+    RestAssured
+      .`given`()
+      .when()
+      .post("/api/board/game/XXXXXXXX/draw/offer")
+      .`then`()
+      .statusCode(404)

modules/backcore/src/test/scala/de/nowchess/backcore/resource/UndoRedoTest.scala

@@ -0,0 +1,88 @@
+package de.nowchess.backcore.resource
+
+import io.quarkus.test.junit.QuarkusTest
+import io.restassured.RestAssured
+import org.hamcrest.Matchers.{containsString, equalTo}
+import org.junit.jupiter.api.Test
+
+@QuarkusTest
+class UndoRedoTest:
+
+  private val initialFen = "rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1"
+
+  private def createGame(): String =
+    RestAssured
+      .`given`()
+      .contentType("application/json")
+      .body("{}")
+      .when()
+      .post("/api/board/game")
+      .`then`()
+      .statusCode(201)
+      .extract()
+      .path[String]("gameId")
+
+  @Test
+  def undoAfterMoveRestoresOriginalPosition(): Unit =
+    val gameId = createGame()
+    RestAssured
+      .`given`()
+      .when()
+      .post(s"/api/board/game/$gameId/move/e2e4")
+      .`then`()
+      .statusCode(200)
+
+    RestAssured
+      .`given`()
+      .when()
+      .post(s"/api/board/game/$gameId/undo")
+      .`then`()
+      .statusCode(200)
+      .body("fen", equalTo(initialFen))
+      .body("undoAvailable", equalTo(false))
+
+  @Test
+  def redoAfterUndoRestoresMovedPosition(): Unit =
+    val gameId = createGame()
+    RestAssured
+      .`given`()
+      .when()
+      .post(s"/api/board/game/$gameId/move/e2e4")
+      .`then`()
+      .statusCode(200)
+
+    RestAssured
+      .`given`()
+      .when()
+      .post(s"/api/board/game/$gameId/undo")
+      .`then`()
+      .statusCode(200)
+
+    RestAssured
+      .`given`()
+      .when()
+      .post(s"/api/board/game/$gameId/redo")
+      .`then`()
+      .statusCode(200)
+      .body("fen", containsString("4P3"))
+      .body("turn", equalTo("black"))
+
+  @Test
+  def undoWithNoHistoryReturns400(): Unit =
+    val gameId = createGame()
+    RestAssured
+      .`given`()
+      .when()
+      .post(s"/api/board/game/$gameId/undo")
+      .`then`()
+      .statusCode(400)
+
+  @Test
+  def redoWithNoRedoStackReturns400(): Unit =
+    val gameId = createGame()
+    RestAssured
+      .`given`()
+      .when()
+      .post(s"/api/board/game/$gameId/redo")
+      .`then`()
+      .statusCode(400)

modules/bot/python/.gitignore

@@ -1,22 +0,0 @@
-# Data and weights are local artifacts, not committed
-data/
-
-# Python
-__pycache__/
-*.py[cod]
-*$py.class
-*.so
-.Python
-env/
-venv/
-ENV/
-.venv
-
-# IDE
-.idea/
-.vscode/
-*.swp
-*.swo
-tactical_data/
-trainingdata/
-/datasets/

modules/bot/python/DATASETS.md

@@ -1,173 +0,0 @@
-# Training Dataset Management
-
-The NNUE training pipeline now features versioned dataset management, similar to model versioning. This prevents data loss and allows you to maintain multiple training configurations.
-
-## Directory Structure
-
-```
-datasets/
-  ds_v1/
-    labeled.jsonl       # Training data: {"fen": "...", "eval": 0.5, "eval_raw": 150}
-    metadata.json       # Version info and composition
-  ds_v2/
-    labeled.jsonl
-    metadata.json
-```
-
-## Metadata Schema
-
-Each dataset has a `metadata.json` file tracking its composition:
-
-```json
-{
-  "version": 1,
-  "created": "2026-04-13T15:30:45.123456",
-  "total_positions": 1000000,
-  "stockfish_depth": 12,
-  "sources": [
-    {
-      "type": "generated",
-      "count": 500000,
-      "params": {
-        "num_positions": 500000,
-        "min_move": 1,
-        "max_move": 50
-      }
-    },
-    {
-      "type": "tactical",
-      "count": 300000,
-      "max_puzzles": 300000
-    },
-    {
-      "type": "file_import",
-      "count": 200000,
-      "path": "/path/to/original_file.txt"
-    }
-  ]
-}
-```
-
-## TUI Workflow
-
-### Main Menu
-```
-1 - Manage Training Data
-2 - Train Model
-3 - Export Model
-4 - Exit
-```
-
-### Training Data Management Submenu
-```
-1 - Create new dataset
-2 - Extend existing dataset
-3 - View all datasets
-4 - Delete dataset
-5 - Back
-```
-
-## Creating a Dataset
-
-Use the "Create new dataset" option to add data from one or more sources:
-
-1. **Generate random positions** — Play random games and sample positions
-   - Number of positions
-   - Move range (min/max move number to sample from)
-   - Number of worker threads
-
-2. **Import from file** — Load positions from a FEN file
-   - File must contain one FEN string per line
-   - Duplicates are automatically removed
-
-3. **Extract tactical puzzles** — Download and extract Lichess puzzle database
-   - Maximum number of puzzles to include
-   - Automatically filters for tactical themes (forks, pins, mates, etc.)
-
-You can combine multiple sources in a single dataset creation session. All positions are:
-- Deduplicated (only unique FENs are kept)
-- Labeled with Stockfish evaluations
-- Saved to `datasets/ds_vN/labeled.jsonl`
-
-## Extending a Dataset
-
-Use "Extend existing dataset" to add more positions to an existing dataset:
-
-1. Select the dataset version to extend
-2. Choose data sources (same options as creation)
-3. Confirm labeling parameters
-4. New positions are:
-   - Labeled with Stockfish
-   - Deduplicated against the target dataset (preventing duplicates)
-   - Merged into the existing `labeled.jsonl`
-   - Metadata is updated with the new source entry
-
-## Training with a Dataset
-
-When you start training (Standard or Burst mode), you'll be prompted to select a dataset version. The TUI will display all available datasets with:
-- Version number
-- Total number of positions
-- Source types (generated, tactical, imported)
-- Stockfish depth used
-- Creation date
-
-## Legacy Data Migration
-
-If you have existing labeled data in `data/training_data.jsonl` from before this update:
-
-1. Open the "Manage Training Data" menu
-2. Choose "Create new dataset"
-3. Select "Import from file"
-4. Point to `data/training_data.jsonl`
-5. Complete the dataset creation
-
-Alternatively, you can manually copy the file to `datasets/ds_v1/labeled.jsonl` and create a `metadata.json` file.
-
-## Viewing Dataset Details
-
-Use "View all datasets" to see a table of all datasets with:
-- Version number
-- Position count
-- Source composition
-- Stockfish depth
-- Creation date
-
-## Deleting a Dataset
-
-Use "Delete dataset" to remove a dataset and free up disk space. **This action cannot be undone.**
-
-⚠️ The system does not prevent deleting datasets used by model checkpoints. Plan accordingly.
-
-## Technical Details
-
-### Deduplication Strategy
-
-When extending a dataset, positions are deduplicated **within that dataset only**. This allows different datasets to contain overlapping positions if desired.
-
-When creating a new dataset from multiple sources, all sources are combined and deduplicated before labeling.
-
-### Labeled Position Format
-
-Each line in `labeled.jsonl` is a JSON object:
-```json
-{
-  "fen": "rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1",
-  "eval": 0.0,
-  "eval_raw": 0
-}
-```
-
-- `fen`: The position in Forsyth-Edwards Notation
-- `eval`: Normalized evaluation ([-1, 1] range using tanh)
-- `eval_raw`: Raw Stockfish evaluation in centipawns
-
-### Storage Location
-
-Datasets are stored in the `datasets/` directory relative to the script location. The old `data/` directory is preserved for backward compatibility but is not actively used by the new system.
-
-## Performance Tips
-
-- **Smaller datasets train faster** — Start with 100k-500k positions
-- **Deduplication matters** — Use the extend functionality to build up your dataset without redundant data
-- **Stockfish depth** — Depth 12-14 balances accuracy and labeling speed
-- **Workers** — Use 4-8 workers for labeling if your machine supports it; more workers = faster but uses more CPU/memory

modules/bot/python/README.md

@@ -1,129 +0,0 @@
-# NNUE Python Pipeline
-
-Central CLI for training and exporting chess evaluation neural networks (NNUE).
-
-## Directory Structure
-
-```
-python/
-├── nnue.py              # Main CLI entry point
-├── src/                 # Python modules
-│   ├── generate.py      # Generate random chess positions
-│   ├── label.py         # Label positions with Stockfish
-│   ├── train.py         # Train NNUE model
-│   └── export.py        # Export weights to Scala
-├── data/                # Training data (gitignored)
-│   ├── positions.txt
-│   └── training_data.jsonl
-└── weights/             # Model weights (gitignored)
-    ├── nnue_weights_v1.pt
-    ├── nnue_weights_v1_metadata.json
-    └── ...
-```
-
-## Quick Start
-
-```bash
-# Train a new model (500k positions, auto-detect checkpoint)
-python nnue.py train
-
-# Train from specific checkpoint
-python nnue.py train --from-checkpoint 2
-
-# Train with custom games count
-python nnue.py train --games 200000
-
-# Train with custom positions file
-python nnue.py train --positions-file my_positions.txt
-
-# Export specific version to Scala
-python nnue.py export 2
-
-# List all checkpoints
-python nnue.py list
-```
-
-## CLI Commands
-
-### `train` - Train NNUE model
-
-```bash
-python nnue.py train [OPTIONS]
-```
-
-**Options:**
-- `--from-checkpoint N` - Resume from checkpoint version N (default: uses latest)
-- `--games N` - Number of games to generate (default: 500000)
-- `--positions-file FILE` - Use existing positions file instead of generating
-- `--stockfish PATH` - Path to Stockfish binary (default: `$STOCKFISH_PATH` or `/usr/games/stockfish`)
-
-**Examples:**
-```bash
-# Train with latest checkpoint
-python nnue.py train
-
-# Train from v2 with 100k games
-python nnue.py train --from-checkpoint 2 --games 100000
-
-# Train with custom positions
-python nnue.py train --positions-file my_games.txt --stockfish /opt/stockfish/sf15
-```
-
-### `export` - Export weights to Scala
-
-```bash
-python nnue.py export WEIGHTS [output_path]
-```
-
-**Arguments:**
-- `WEIGHTS` - Version number (e.g., `2`) or full filename (e.g., `nnue_weights_v2.pt`)
-
-**Examples:**
-```bash
-# Export version 2
-python nnue.py export 2
-
-# Export with full filename
-python nnue.py export nnue_weights_v3.pt
-```
-
-Output goes to `../src/main/scala/de/nowchess/bot/bots/nnue/NNUEWeights_vN.scala`
-
-### `list` - List available checkpoints
-
-```bash
-python nnue.py list
-```
-
-Shows all available model versions with file sizes.
-
-## Data Flow
-
-1. **Generate** → `data/positions.txt`
-   - Random chess positions from 8-20 move openings
-   - Filters out checks, game-over states, and captures
-
-2. **Label** → `data/training_data.jsonl`
-   - Evaluates each position with Stockfish at depth 12
-   - Stores FEN + evaluation in JSONL format
-
-3. **Train** → `weights/nnue_weights_vN.pt`
-   - Trains neural network on labeled positions
-   - Auto-versioning (v1, v2, v3, etc.)
-   - Saves metadata alongside weights
-
-4. **Export** → `NNUEWeights_vN.scala`
-   - Converts weights to Scala object
-   - Ready for integration into bot
-
-## Versioning
-
-- Models are automatically versioned (v1, v2, v3, etc.)
-- Each version gets a `_metadata.json` file with training info
-- Training from checkpoint uses latest version unless specified with `--from-checkpoint`
-
-## Files
-
-- `data/` and `weights/` are gitignored (local artifacts)
-- Documentation in `docs/` explains training, debugging, and incremental improvements
-- Source modules in `src/` are independent and can be imported for custom workflows

modules/bot/python/nnue.py

@@ -1,951 +0,0 @@
-#!/usr/bin/env python3
-"""Central NNUE pipeline TUI for training and exporting models."""
-
-import os
-import shutil
-import sys
-import tempfile
-from pathlib import Path
-from rich.console import Console
-from rich.table import Table
-from rich.panel import Panel
-from rich.prompt import Prompt, Confirm
-from rich import print as rprint
-
-# Add src directory to path so we can import modules
-sys.path.insert(0, str(Path(__file__).parent / "src"))
-
-from generate import play_random_game_and_collect_positions
-from label import label_positions_with_stockfish
-from train import train_nnue, burst_train, DEFAULT_HIDDEN_SIZES
-from export import export_to_nbai
-from tactical_positions_extractor import (
-    download_and_extract_puzzle_db,
-    extract_tactical_only
-)
-from lichess_importer import import_lichess_evals
-from dataset import (
-    get_datasets_dir,
-    list_datasets,
-    next_dataset_version,
-    load_dataset_metadata,
-    create_dataset,
-    extend_dataset,
-    get_dataset_labeled_path,
-    delete_dataset,
-    show_datasets_table
-)
-
-
-def get_weights_dir():
-    """Get/create weights directory."""
-    weights_dir = Path(__file__).parent / "weights"
-    weights_dir.mkdir(exist_ok=True)
-    return weights_dir
-
-
-def get_data_dir():
-    """Get/create legacy data directory (for migration)."""
-    data_dir = Path(__file__).parent / "data"
-    data_dir.mkdir(exist_ok=True)
-    return data_dir
-
-
-def list_checkpoints():
-    """List available checkpoint versions."""
-    weights_dir = get_weights_dir()
-    checkpoints = sorted(weights_dir.glob("nnue_weights_v*.pt"))
-    if not checkpoints:
-        return []
-    return [int(cp.stem.split("_v")[1]) for cp in checkpoints]
-
-
-def migrate_legacy_data():
-    """On first run, offer to import existing data/training_data.jsonl as ds_v1."""
-    console = Console()
-    data_dir = get_data_dir()
-    legacy_file = data_dir / "training_data.jsonl"
-    datasets = list_datasets()
-
-    # Only migrate if legacy data exists and no datasets exist yet
-    if legacy_file.exists() and not datasets:
-        console.print("\n[cyan]Legacy data detected: data/training_data.jsonl[/cyan]")
-        console.print("[dim]Tip: Use 'Manage Training Data' menu to import it as ds_v1[/dim]")
-
-
-def show_header():
-    """Display application header."""
-    console = Console()
-    console.clear()
-    console.print(
-        Panel(
-            "[bold cyan]🧠 NNUE Training Pipeline[/bold cyan]\n"
-            "[dim]Neural Network Utility Evaluation - Dataset & Model Management[/dim]",
-            border_style="cyan",
-            padding=(1, 2),
-        )
-    )
-
-
-def show_checkpoints_table():
-    """Display available checkpoints in a table."""
-    console = Console()
-    available = list_checkpoints()
-
-    if not available:
-        console.print("[yellow]ℹ No model checkpoints found yet[/yellow]")
-        return
-
-    table = Table(title="Available Model Checkpoints", show_header=True, header_style="bold cyan")
-    table.add_column("Version", style="dim")
-    table.add_column("File Size", justify="right")
-    table.add_column("Status", justify="center")
-
-    weights_dir = get_weights_dir()
-    for v in sorted(available):
-        weights_file = weights_dir / f"nnue_weights_v{v}.pt"
-        if weights_file.exists():
-            size = weights_file.stat().st_size / (1024**2)
-            table.add_row(f"v{v}", f"{size:.1f} MB", "✓ Ready")
-        else:
-            table.add_row(f"v{v}", "?", "[red]✗ Missing[/red]")
-
-    console.print(table)
-
-
-def show_main_menu():
-    """Display and handle main menu."""
-    console = Console()
-
-    # Migrate legacy data on first run
-    migrate_legacy_data()
-
-    while True:
-        show_header()
-        show_checkpoints_table()
-
-        console.print("\n[bold]What would you like to do?[/bold]")
-        console.print("[cyan]1[/cyan] - Manage Training Data")
-        console.print("[cyan]2[/cyan] - Train Model")
-        console.print("[cyan]3[/cyan] - Export Model")
-        console.print("[cyan]4[/cyan] - Exit")
-
-        choice = Prompt.ask("\nSelect option", choices=["1", "2", "3", "4"])
-
-        if choice == "1":
-            datasets_menu()
-        elif choice == "2":
-            training_menu()
-        elif choice == "3":
-            export_interactive()
-        elif choice == "4":
-            console.print("[yellow]👋 Goodbye![/yellow]")
-            return
-
-
-def datasets_menu():
-    """Dataset management submenu."""
-    console = Console()
-
-    while True:
-        show_header()
-        show_datasets_table(console)
-
-        console.print("\n[bold]Training Data Management[/bold]")
-        console.print("[cyan]1[/cyan] - Create new dataset")
-        console.print("[cyan]2[/cyan] - Extend existing dataset")
-        console.print("[cyan]3[/cyan] - View all datasets")
-        console.print("[cyan]4[/cyan] - Delete dataset")
-        console.print("[cyan]5[/cyan] - Back")
-
-        choice = Prompt.ask("\nSelect option", choices=["1", "2", "3", "4", "5"])
-
-        if choice == "1":
-            create_dataset_interactive()
-        elif choice == "2":
-            extend_dataset_interactive()
-        elif choice == "3":
-            show_header()
-            show_datasets_table(console)
-            Prompt.ask("\nPress Enter to continue")
-        elif choice == "4":
-            delete_dataset_interactive()
-        elif choice == "5":
-            return
-
-
-def create_dataset_interactive():
-    """Interactive dataset creation flow."""
-    console = Console()
-    show_header()
-
-    console.print("\n[bold cyan]📊 Create New Dataset[/bold cyan]")
-
-    sources = []
-    combined_count = 0
-
-    # Allow user to add multiple sources
-    while True:
-        console.print("\n[bold]Add data source (repeat until done):[/bold]")
-        console.print("[cyan]a[/cyan] - Generate random positions")
-        console.print("[cyan]b[/cyan] - Import from file")
-        console.print("[cyan]c[/cyan] - Extract Lichess tactical puzzles")
-        console.print("[cyan]d[/cyan] - Import Lichess eval database (.jsonl.zst)")
-        console.print("[cyan]e[/cyan] - Done adding sources")
-
-        choice = Prompt.ask("Select", choices=["a", "b", "c", "d", "e"])
-
-        if choice == "a":
-            num_positions = int(Prompt.ask("Number of positions to generate", default="100000"))
-            min_move = int(Prompt.ask("Minimum move number", default="1"))
-            max_move = int(Prompt.ask("Maximum move number", default="50"))
-            num_workers = int(Prompt.ask("Number of workers", default="8"))
-
-            console.print("[dim]Generating positions...[/dim]")
-            temp_file = Path(tempfile.gettempdir()) / "temp_positions.txt"
-            count = play_random_game_and_collect_positions(
-                str(temp_file),
-                total_positions=num_positions,
-                samples_per_game=1,
-                min_move=min_move,
-                max_move=max_move,
-                num_workers=num_workers
-            )
-            if count > 0:
-                sources.append({
-                    "type": "generated",
-                    "count": count,
-                    "params": {"num_positions": num_positions, "min_move": min_move, "max_move": max_move}
-                })
-                combined_count += count
-                console.print(f"[green]✓ {count:,} positions generated[/green]")
-            else:
-                console.print("[red]✗ Generation failed[/red]")
-
-        elif choice == "b":
-            file_path = Prompt.ask("Path to FEN file")
-            try:
-                with open(file_path, 'r') as f:
-                    count = sum(1 for _ in f)
-                sources.append({"type": "file_import", "count": count, "path": file_path})
-                combined_count += count
-                console.print(f"[green]✓ {count:,} positions from file[/green]")
-            except FileNotFoundError:
-                console.print(f"[red]✗ File not found: {file_path}[/red]")
-
-        elif choice == "c":
-            max_puzzles = int(Prompt.ask("Maximum puzzles to extract", default="300000"))
-            console.print("[dim]Extracting tactical positions...[/dim]")
-            temp_file = Path(tempfile.gettempdir()) / "temp_tactical.txt"
-            try:
-                csv_path = download_and_extract_puzzle_db(output_dir=str(Path(__file__).parent / "tactical_data"))
-                if csv_path:
-                    count = extract_tactical_only(csv_path, str(temp_file), max_puzzles)
-                    sources.append({"type": "tactical", "count": count, "max_puzzles": max_puzzles})
-                    combined_count += count
-                    console.print(f"[green]✓ {count:,} tactical positions extracted[/green]")
-            except Exception as e:
-                console.print(f"[red]✗ Tactical extraction failed: {e}[/red]")
-
-        elif choice == "d":
-            zst_path = Prompt.ask("Path to lichess_db_eval.jsonl.zst")
-            max_pos = Prompt.ask("Max positions to import (blank = no limit)", default="")
-            max_pos = int(max_pos) if max_pos.strip() else None
-            min_depth = int(Prompt.ask("Minimum eval depth to accept", default="20"))
-            console.print("[dim]Importing Lichess evals (this may take a while)...[/dim]")
-            temp_file = Path(tempfile.gettempdir()) / "temp_lichess.jsonl"
-            temp_file.unlink(missing_ok=True)
-            try:
-                count = import_lichess_evals(
-                    input_path=zst_path,
-                    output_file=str(temp_file),
-                    max_positions=max_pos,
-                    min_depth=min_depth,
-                )
-                if count > 0:
-                    sources.append({
-                        "type": "lichess",
-                        "count": count,
-                        "params": {"min_depth": min_depth, "max_positions": max_pos},
-                    })
-                    combined_count += count
-                    console.print(f"[green]✓ {count:,} positions imported from Lichess[/green]")
-                else:
-                    console.print("[red]✗ No positions imported[/red]")
-            except Exception as e:
-                console.print(f"[red]✗ Lichess import failed: {e}[/red]")
-
-        elif choice == "e":
-            if not sources:
-                console.print("[yellow]⚠ No sources added yet[/yellow]")
-                continue
-            break
-
-    if not sources:
-        console.print("[yellow]Dataset creation cancelled[/yellow]")
-        return
-
-    # Determine whether any sources still need Stockfish labeling.
-    # Lichess sources are already labeled; only generated/tactical/file sources need it.
-    needs_labeling = any(s["type"] != "lichess" for s in sources)
-
-    stockfish_depth = 12
-    if needs_labeling:
-        console.print("\n[bold cyan]🏷️  Labeling Parameters[/bold cyan]")
-        stockfish_path = Prompt.ask(
-            "Stockfish path",
-            default=os.environ.get("STOCKFISH_PATH") or shutil.which("stockfish") or "/usr/bin/stockfish"
-        )
-        stockfish_depth = int(Prompt.ask("Stockfish analysis depth", default="12"))
-        num_workers = int(Prompt.ask("Number of parallel workers", default="1"))
-
-    # Summary and confirm
-    console.print("\n[bold]Dataset Summary:[/bold]")
-    console.print(f"  Total positions: {combined_count:,}")
-    for source in sources:
-        console.print(f"  - {source['type']}: {source['count']:,}")
-    if needs_labeling:
-        console.print(f"  Stockfish depth: {stockfish_depth}")
-
-    if not Confirm.ask("\nProceed to create dataset?", default=True):
-        console.print("[yellow]Cancelled[/yellow]")
-        return
-
-    try:
-        labeled_file = Path(tempfile.gettempdir()) / "labeled.jsonl"
-        labeled_file.unlink(missing_ok=True)
-
-        # --- Step 1: Collect already-labeled data (Lichess source) ---
-        lichess_tmp = Path(tempfile.gettempdir()) / "temp_lichess.jsonl"
-        if lichess_tmp.exists():
-            import shutil as _shutil
-            _shutil.copy(lichess_tmp, labeled_file)
-            console.print(f"\n[bold cyan]Step 1: Pre-labeled data copied[/bold cyan]")
-            console.print(f"[green]✓ Lichess positions ready[/green]")
-
-        # --- Step 2: Combine unlabeled sources and run Stockfish (if any) ---
-        non_lichess = [s for s in sources if s["type"] != "lichess"]
-        if non_lichess:
-            console.print("\n[bold cyan]Step 2: Combining unlabeled sources[/bold cyan]")
-            combined_fen_file = Path(tempfile.gettempdir()) / "combined_positions.txt"
-            all_fens = set()
-
-            for source in non_lichess:
-                if source["type"] == "generated":
-                    temp_file = Path(tempfile.gettempdir()) / "temp_positions.txt"
-                elif source["type"] == "file_import":
-                    temp_file = Path(source["path"])
-                elif source["type"] == "tactical":
-                    temp_file = Path(tempfile.gettempdir()) / "temp_tactical.txt"
-                else:
-                    continue
-
-                if temp_file.exists():
-                    with open(temp_file, "r") as f:
-                        for line in f:
-                            fen = line.strip()
-                            if fen:
-                                all_fens.add(fen)
-
-            with open(combined_fen_file, "w") as f:
-                for fen in all_fens:
-                    f.write(fen + "\n")
-            console.print(f"[green]✓ Combined {len(all_fens):,} unique unlabeled positions[/green]")
-
-            console.print("\n[bold cyan]Step 2b: Labeling with Stockfish[/bold cyan]")
-            success = label_positions_with_stockfish(
-                str(combined_fen_file),
-                str(labeled_file),
-                stockfish_path,
-                depth=stockfish_depth,
-                num_workers=num_workers,
-            )
-            if not success:
-                console.print("[red]✗ Stockfish labeling failed[/red]")
-                return
-            console.print("[green]✓ Positions labeled[/green]")
-
-        # --- Step 3: Create dataset ---
-        console.print("\n[bold cyan]Step 3: Creating Dataset[/bold cyan]")
-        version = next_dataset_version()
-        create_dataset(
-            version=version,
-            labeled_jsonl_path=str(labeled_file),
-            sources=sources,
-            stockfish_depth=stockfish_depth,
-        )
-        console.print(f"[green]✓ Dataset created: ds_v{version}[/green]")
-        console.print(f"[bold]Location: {get_datasets_dir() / f'ds_v{version}'}[/bold]")
-
-        Prompt.ask("\nPress Enter to continue")
-
-    except Exception as e:
-        console.print(f"[red]✗ Error: {e}[/red]")
-        import traceback
-        traceback.print_exc()
-        Prompt.ask("Press Enter to continue")
-
-
-def extend_dataset_interactive():
-    """Interactive dataset extension flow."""
-    console = Console()
-    show_header()
-
-    console.print("\n[bold cyan]📊 Extend Existing Dataset[/bold cyan]")
-
-    datasets = list_datasets()
-    if not datasets:
-        console.print("[yellow]ℹ No datasets available to extend[/yellow]")
-        Prompt.ask("Press Enter to continue")
-        return
-
-    show_datasets_table(console)
-    version = int(Prompt.ask("\nEnter dataset version to extend (e.g., 1)"))
-
-    if not any(v == version for v, _ in datasets):
-        console.print("[red]✗ Dataset not found[/red]")
-        return
-
-    sources = []
-    combined_count = 0
-
-    # Allow user to add sources
-    while True:
-        console.print("\n[bold]Add data source:[/bold]")
-        console.print("[cyan]a[/cyan] - Generate random positions")
-        console.print("[cyan]b[/cyan] - Import from file")
-        console.print("[cyan]c[/cyan] - Extract Lichess tactical puzzles")
-        console.print("[cyan]d[/cyan] - Import Lichess eval database (.jsonl.zst)")
-        console.print("[cyan]e[/cyan] - Done adding sources")
-
-        choice = Prompt.ask("Select", choices=["a", "b", "c", "d", "e"])
-
-        if choice == "a":
-            num_positions = int(Prompt.ask("Number of positions to generate", default="100000"))
-            min_move = int(Prompt.ask("Minimum move number", default="1"))
-            max_move = int(Prompt.ask("Maximum move number", default="50"))
-            num_workers = int(Prompt.ask("Number of workers", default="8"))
-
-            console.print("[dim]Generating positions...[/dim]")
-            temp_file = Path(tempfile.gettempdir()) / "temp_positions.txt"
-            count = play_random_game_and_collect_positions(
-                str(temp_file),
-                total_positions=num_positions,
-                samples_per_game=1,
-                min_move=min_move,
-                max_move=max_move,
-                num_workers=num_workers
-            )
-            if count > 0:
-                sources.append({
-                    "type": "generated",
-                    "count": count,
-                    "params": {"num_positions": num_positions, "min_move": min_move, "max_move": max_move}
-                })
-                combined_count += count
-                console.print(f"[green]✓ {count:,} positions generated[/green]")
-
-        elif choice == "b":
-            file_path = Prompt.ask("Path to FEN file")
-            try:
-                with open(file_path, 'r') as f:
-                    count = sum(1 for _ in f)
-                sources.append({"type": "file_import", "count": count, "path": file_path})
-                combined_count += count
-                console.print(f"[green]✓ {count:,} positions from file[/green]")
-            except FileNotFoundError:
-                console.print(f"[red]✗ File not found: {file_path}[/red]")
-
-        elif choice == "c":
-            max_puzzles = int(Prompt.ask("Maximum puzzles to extract", default="300000"))
-            console.print("[dim]Extracting tactical positions...[/dim]")
-            temp_file = Path(tempfile.gettempdir()) / "temp_tactical.txt"
-            try:
-                csv_path = download_and_extract_puzzle_db(output_dir=str(Path(__file__).parent / "tactical_data"))
-                if csv_path:
-                    count = extract_tactical_only(csv_path, str(temp_file), max_puzzles)
-                    sources.append({"type": "tactical", "count": count, "max_puzzles": max_puzzles})
-                    combined_count += count
-                    console.print(f"[green]✓ {count:,} tactical positions extracted[/green]")
-            except Exception as e:
-                console.print(f"[red]✗ Extraction failed: {e}[/red]")
-
-        elif choice == "d":
-            zst_path = Prompt.ask("Path to lichess_db_eval.jsonl.zst")
-            max_pos = Prompt.ask("Max positions to import (blank = no limit)", default="")
-            max_pos = int(max_pos) if max_pos.strip() else None
-            min_depth = int(Prompt.ask("Minimum eval depth to accept", default="20"))
-            console.print("[dim]Importing Lichess evals (this may take a while)...[/dim]")
-            temp_file = Path(tempfile.gettempdir()) / "temp_lichess.jsonl"
-            temp_file.unlink(missing_ok=True)
-            try:
-                count = import_lichess_evals(
-                    input_path=zst_path,
-                    output_file=str(temp_file),
-                    max_positions=max_pos,
-                    min_depth=min_depth,
-                )
-                if count > 0:
-                    sources.append({
-                        "type": "lichess",
-                        "count": count,
-                        "params": {"min_depth": min_depth, "max_positions": max_pos},
-                    })
-                    combined_count += count
-                    console.print(f"[green]✓ {count:,} positions imported from Lichess[/green]")
-                else:
-                    console.print("[red]✗ No positions imported[/red]")
-            except Exception as e:
-                console.print(f"[red]✗ Lichess import failed: {e}[/red]")
-
-        elif choice == "e":
-            if not sources:
-                console.print("[yellow]⚠ No sources added yet[/yellow]")
-                continue
-            break
-
-    if not sources:
-        console.print("[yellow]Extension cancelled[/yellow]")
-        return
-
-    needs_labeling = any(s["type"] != "lichess" for s in sources)
-
-    stockfish_depth = 12
-    if needs_labeling:
-        console.print("\n[bold cyan]🏷️  Labeling Parameters[/bold cyan]")
-        stockfish_path = Prompt.ask(
-            "Stockfish path",
-            default=os.environ.get("STOCKFISH_PATH") or shutil.which("stockfish") or "/usr/bin/stockfish"
-        )
-        stockfish_depth = int(Prompt.ask("Stockfish analysis depth", default="12"))
-        num_workers = int(Prompt.ask("Number of parallel workers", default="1"))
-
-    # Summary and confirm
-    console.print("\n[bold]Extension Summary:[/bold]")
-    console.print(f"  Target dataset: ds_v{version}")
-    console.print(f"  New positions: {combined_count:,}")
-    for source in sources:
-        console.print(f"  - {source['type']}: {source['count']:,}")
-    if needs_labeling:
-        console.print(f"  Stockfish depth: {stockfish_depth}")
-
-    if not Confirm.ask("\nProceed to extend dataset?", default=True):
-        console.print("[yellow]Cancelled[/yellow]")
-        return
-
-    try:
-        labeled_file = Path(tempfile.gettempdir()) / "labeled.jsonl"
-        labeled_file.unlink(missing_ok=True)
-
-        # Copy pre-labeled Lichess data if present
-        lichess_tmp = Path(tempfile.gettempdir()) / "temp_lichess.jsonl"
-        if lichess_tmp.exists():
-            import shutil as _shutil
-            _shutil.copy(lichess_tmp, labeled_file)
-            console.print(f"\n[bold cyan]Step 1: Pre-labeled data copied[/bold cyan]")
-            console.print(f"[green]✓ Lichess positions ready[/green]")
-
-        # Combine and label remaining sources with Stockfish
-        non_lichess = [s for s in sources if s["type"] != "lichess"]
-        if non_lichess:
-            console.print("\n[bold cyan]Step 2: Combining unlabeled sources[/bold cyan]")
-            combined_fen_file = Path(tempfile.gettempdir()) / "combined_positions.txt"
-            all_fens = set()
-
-            for source in non_lichess:
-                if source["type"] == "generated":
-                    temp_file = Path(tempfile.gettempdir()) / "temp_positions.txt"
-                elif source["type"] == "file_import":
-                    temp_file = Path(source["path"])
-                elif source["type"] == "tactical":
-                    temp_file = Path(tempfile.gettempdir()) / "temp_tactical.txt"
-                else:
-                    continue
-                if temp_file.exists():
-                    with open(temp_file, "r") as f:
-                        for line in f:
-                            fen = line.strip()
-                            if fen:
-                                all_fens.add(fen)
-
-            with open(combined_fen_file, "w") as f:
-                for fen in all_fens:
-                    f.write(fen + "\n")
-            console.print(f"[green]✓ Combined {len(all_fens):,} unique unlabeled positions[/green]")
-
-            console.print("\n[bold cyan]Step 2b: Labeling with Stockfish[/bold cyan]")
-            success = label_positions_with_stockfish(
-                str(combined_fen_file),
-                str(labeled_file),
-                stockfish_path,
-                depth=stockfish_depth,
-                num_workers=num_workers,
-            )
-            if not success:
-                console.print("[red]✗ Stockfish labeling failed[/red]")
-                return
-            console.print("[green]✓ Positions labeled[/green]")
-
-        # Extend dataset
-        console.print("\n[bold cyan]Step 3: Extending Dataset[/bold cyan]")
-        success = extend_dataset(
-            version=version,
-            new_labeled_path=str(labeled_file),
-            new_source_entry={
-                "type": "merged_sources",
-                "count": combined_count,
-                "sources": sources,
-            }
-        )
-
-        if success:
-            metadata = load_dataset_metadata(version)
-            console.print(f"[green]✓ Dataset extended[/green]")
-            console.print(f"[bold]Total positions: {metadata['total_positions']:,}[/bold]")
-        else:
-            console.print("[red]✗ Extension failed[/red]")
-
-        Prompt.ask("\nPress Enter to continue")
-
-    except Exception as e:
-        console.print(f"[red]✗ Error: {e}[/red]")
-        import traceback
-        traceback.print_exc()
-        Prompt.ask("Press Enter to continue")
-
-
-def delete_dataset_interactive():
-    """Interactive dataset deletion."""
-    console = Console()
-    show_header()
-
-    console.print("\n[bold cyan]⚠️  Delete Dataset[/bold cyan]")
-
-    datasets = list_datasets()
-    if not datasets:
-        console.print("[yellow]ℹ No datasets to delete[/yellow]")
-        Prompt.ask("Press Enter to continue")
-        return
-
-    show_datasets_table(console)
-    version = int(Prompt.ask("\nEnter dataset version to delete (e.g., 1)"))
-
-    if not any(v == version for v, _ in datasets):
-        console.print("[red]✗ Dataset not found[/red]")
-        return
-
-    if Confirm.ask(f"Delete ds_v{version}? This cannot be undone.", default=False):
-        if delete_dataset(version):
-            console.print(f"[green]✓ Dataset ds_v{version} deleted[/green]")
-        else:
-            console.print("[red]✗ Deletion failed[/red]")
-
-    Prompt.ask("Press Enter to continue")
-
-
-def training_menu():
-    """Training submenu."""
-    console = Console()
-
-    while True:
-        show_header()
-
-        console.print("\n[bold]Training[/bold]")
-        console.print("[cyan]1[/cyan] - Standard Training")
-        console.print("[cyan]2[/cyan] - Burst Training")
-        console.print("[cyan]3[/cyan] - View Model Checkpoints")
-        console.print("[cyan]4[/cyan] - Back")
-
-        choice = Prompt.ask("\nSelect option", choices=["1", "2", "3", "4"])
-
-        if choice == "1":
-            train_interactive()
-        elif choice == "2":
-            burst_train_interactive()
-        elif choice == "3":
-            show_header()
-            show_checkpoints_table()
-            Prompt.ask("\nPress Enter to continue")
-        elif choice == "4":
-            return
-
-
-def train_interactive():
-    """Interactive training menu."""
-    console = Console()
-    show_header()
-
-    console.print("\n[bold cyan]📚 Standard Training Configuration[/bold cyan]")
-
-    # Dataset selection
-    datasets = list_datasets()
-    if not datasets:
-        console.print("[red]✗ No datasets available. Create one first.[/red]")
-        Prompt.ask("Press Enter to continue")
-        return
-
-    console.print("\n[bold]Available Datasets:[/bold]")
-    show_datasets_table(console)
-    dataset_version = int(Prompt.ask("\nEnter dataset version to train on (e.g., 1)"))
-
-    if not any(v == dataset_version for v, _ in datasets):
-        console.print("[red]✗ Dataset not found[/red]")
-        return
-
-    labeled_file = get_dataset_labeled_path(dataset_version)
-    if not labeled_file:
-        console.print("[red]✗ Dataset labeled.jsonl not found[/red]")
-        return
-
-    # Checkpoint selection
-    available = list_checkpoints()
-    use_checkpoint = False
-    checkpoint_version = None
-
-    if available:
-        console.print(f"\n[dim]Available checkpoints: {', '.join([f'v{v}' for v in sorted(available)])}[/dim]")
-        use_checkpoint = Confirm.ask("Start from an existing checkpoint?", default=False)
-        if use_checkpoint:
-            checkpoint_version = Prompt.ask(
-                "Enter checkpoint version",
-                default=str(max(available))
-            )
-
-    # Training parameters
-    epochs = int(Prompt.ask("Number of epochs", default="100"))
-    batch_size = int(Prompt.ask("Batch size", default="16384"))
-    subsample_ratio = float(Prompt.ask("Stochastic subsample ratio per epoch (1.0 = all data)", default="1.0"))
-    default_layers = ",".join(str(s) for s in DEFAULT_HIDDEN_SIZES)
-    hidden_layers_str = Prompt.ask(
-        "Hidden layer sizes (comma-separated, e.g. 1536,1024,512,256)",
-        default=default_layers
-    )
-    hidden_sizes = [int(x.strip()) for x in hidden_layers_str.split(",") if x.strip()]
-    early_stopping = None
-    if Confirm.ask("Enable early stopping?", default=False):
-        early_stopping = int(Prompt.ask("Patience (epochs)", default="5"))
-
-    arch_str = " → ".join(str(s) for s in [768] + hidden_sizes + [1])
-
-    # Confirm and start
-    console.print("\n[bold]Configuration Summary:[/bold]")
-    console.print(f"  Dataset: ds_v{dataset_version}")
-    console.print(f"  Architecture: {arch_str}")
-    console.print(f"  Epochs: {epochs}")
-    console.print(f"  Batch size: {batch_size}")
-    console.print(f"  Subsample ratio: {subsample_ratio:.0%}")
-    if early_stopping:
-        console.print(f"  Early stopping: Yes (patience: {early_stopping})")
-    else:
-        console.print(f"  Early stopping: No")
-    if use_checkpoint:
-        console.print(f"  Checkpoint: v{checkpoint_version}")
-    else:
-        console.print(f"  Checkpoint: None (training from scratch)")
-
-    if not Confirm.ask("\nStart training?", default=True):
-        console.print("[yellow]Training cancelled[/yellow]")
-        Prompt.ask("Press Enter to continue")
-        return
-
-    # Execute training
-    weights_dir = get_weights_dir()
-
-    try:
-        console.print("\n[bold cyan]Training Model[/bold cyan]")
-        checkpoint = None
-        if use_checkpoint:
-            checkpoint = str(weights_dir / f"nnue_weights_v{checkpoint_version}.pt")
-
-        train_nnue(
-            data_file=str(labeled_file),
-            output_file=str(weights_dir / "nnue_weights.pt"),
-            epochs=epochs,
-            batch_size=batch_size,
-            checkpoint=checkpoint,
-            use_versioning=True,
-            early_stopping_patience=early_stopping,
-            subsample_ratio=subsample_ratio,
-            hidden_sizes=hidden_sizes,
-        )
-        console.print("[green]✓ Training complete[/green]")
-
-        # Show result
-        available = list_checkpoints()
-        new_version = max(available) if available else 1
-        console.print(f"\n[bold green]✓ Training successful![/bold green]")
-        console.print(f"[bold]New checkpoint: v{new_version}[/bold]")
-        Prompt.ask("Press Enter to continue")
-
-    except Exception as e:
-        console.print(f"[red]✗ Error: {e}[/red]")
-        import traceback
-        traceback.print_exc()
-        Prompt.ask("Press Enter to continue")
-
-
-def burst_train_interactive():
-    """Interactive burst training menu."""
-    console = Console()
-    show_header()
-
-    console.print("\n[bold cyan]⚡ Burst Training Configuration[/bold cyan]")
-    console.print("[dim]Repeatedly restarts from the best checkpoint until the time budget expires.[/dim]\n")
-
-    # Dataset selection
-    datasets = list_datasets()
-    if not datasets:
-        console.print("[red]✗ No datasets available. Create one first.[/red]")
-        Prompt.ask("Press Enter to continue")
-        return
-
-    console.print("[bold]Available Datasets:[/bold]")
-    show_datasets_table(console)
-    dataset_version = int(Prompt.ask("\nEnter dataset version to train on (e.g., 1)"))
-
-    if not any(v == dataset_version for v, _ in datasets):
-        console.print("[red]✗ Dataset not found[/red]")
-        return
-
-    labeled_file = get_dataset_labeled_path(dataset_version)
-    if not labeled_file:
-        console.print("[red]✗ Dataset labeled.jsonl not found[/red]")
-        return
-
-    duration_minutes = float(Prompt.ask("Training budget (minutes)", default="60"))
-    epochs_per_season = int(Prompt.ask("Max epochs per season", default="50"))
-    early_stopping_patience = int(Prompt.ask("Early stopping patience (epochs)", default="10"))
-
-    # Optional initial checkpoint
-    available = list_checkpoints()
-    checkpoint = None
-    if available:
-        console.print(f"\n[dim]Available checkpoints: {', '.join([f'v{v}' for v in sorted(available)])}[/dim]")
-        if Confirm.ask("Start from an existing checkpoint?", default=False):
-            version = Prompt.ask("Enter checkpoint version", default=str(max(available)))
-            checkpoint = str(get_weights_dir() / f"nnue_weights_v{version}.pt")
-
-    # Training hyperparameters
-    batch_size = int(Prompt.ask("Batch size", default="16384"))
-    subsample_ratio = float(Prompt.ask("Stochastic subsample ratio per epoch (1.0 = all data)", default="1.0"))
-    default_layers = ",".join(str(s) for s in DEFAULT_HIDDEN_SIZES)
-    hidden_layers_str = Prompt.ask(
-        "Hidden layer sizes (comma-separated, e.g. 1536,1024,512,256)",
-        default=default_layers
-    )
-    hidden_sizes = [int(x.strip()) for x in hidden_layers_str.split(",") if x.strip()]
-    arch_str = " → ".join(str(s) for s in [768] + hidden_sizes + [1])
-
-    # Summary
-    console.print("\n[bold]Configuration Summary:[/bold]")
-    console.print(f"  Dataset:             ds_v{dataset_version}")
-    console.print(f"  Architecture:        {arch_str}")
-    console.print(f"  Duration:            {duration_minutes:.0f} minutes")
-    console.print(f"  Epochs per season:   {epochs_per_season}")
-    console.print(f"  Patience:            {early_stopping_patience}")
-    console.print(f"  Batch size:          {batch_size}")
-    console.print(f"  Subsample ratio:     {subsample_ratio:.0%}")
-    console.print(f"  Checkpoint:          {checkpoint or 'None (from scratch)'}")
-
-    if not Confirm.ask("\nStart burst training?", default=True):
-        console.print("[yellow]Burst training cancelled[/yellow]")
-        Prompt.ask("Press Enter to continue")
-        return
-
-    weights_dir = get_weights_dir()
-
-    try:
-        console.print("\n[bold cyan]Burst Training[/bold cyan]")
-        burst_train(
-            data_file=str(labeled_file),
-            output_file=str(weights_dir / "nnue_weights.pt"),
-            duration_minutes=duration_minutes,
-            epochs_per_season=epochs_per_season,
-            early_stopping_patience=early_stopping_patience,
-            batch_size=batch_size,
-            initial_checkpoint=checkpoint,
-            use_versioning=True,
-            subsample_ratio=subsample_ratio,
-            hidden_sizes=hidden_sizes,
-        )
-        console.print("[green]✓ Burst training complete[/green]")
-
-        available = list_checkpoints()
-        if available:
-            console.print(f"[bold]Latest checkpoint: v{max(available)}[/bold]")
-        Prompt.ask("Press Enter to continue")
-
-    except Exception as e:
-        console.print(f"[red]✗ Error: {e}[/red]")
-        import traceback
-        traceback.print_exc()
-        Prompt.ask("Press Enter to continue")
-
-
-def export_interactive():
-    """Interactive export menu."""
-    console = Console()
-    show_header()
-
-    console.print("\n[bold cyan]📦 Export Configuration[/bold cyan]")
-
-    # Select weights version
-    available = list_checkpoints()
-    if not available:
-        console.print("[red]✗ No checkpoints available to export[/red]")
-        Prompt.ask("Press Enter to continue")
-        return
-
-    console.print(f"[dim]Available versions: {', '.join([f'v{v}' for v in sorted(available)])}[/dim]")
-    version = Prompt.ask("Enter version to export (e.g., 2)")
-
-    weights_file = f"nnue_weights_v{version}.pt"
-    output_file = str(Path(__file__).parent.parent / "src" / "main" / "resources" / "nnue_weights.nbai")
-
-    console.print(f"\n[bold]Export Configuration:[/bold]")
-    console.print(f"  Source: {weights_file}")
-    console.print(f"  Destination: {output_file}")
-
-    if not Confirm.ask("\nExport weights?", default=True):
-        console.print("[yellow]Export cancelled[/yellow]")
-        return
-
-    try:
-        weights_dir = get_weights_dir()
-        weights_path = weights_dir / weights_file
-
-        if not weights_path.exists():
-            console.print(f"[red]✗ {weights_file} not found[/red]")
-            return
-
-        console.print("\n[bold cyan]Exporting Weights[/bold cyan]")
-        export_to_nbai(str(weights_path), output_file)
-        console.print(f"\n[green]✓ Export complete![/green]")
-        console.print(f"[bold]Weights saved to:[/bold] {output_file}")
-        Prompt.ask("Press Enter to continue")
-
-    except Exception as e:
-        console.print(f"[red]✗ Error: {e}[/red]")
-        import traceback
-        traceback.print_exc()
-        Prompt.ask("Press Enter to continue")
-
-
-def main():
-    try:
-        show_main_menu()
-        return 0
-    except KeyboardInterrupt:
-        console = Console()
-        console.print("\n[yellow]Interrupted by user[/yellow]")
-        return 1
-    except Exception as e:
-        console = Console()
-        console.print(f"[red]Error:[/red] {e}")
-        import traceback
-        traceback.print_exc()
-        return 1
-
-
-if __name__ == "__main__":
-    sys.exit(main())

modules/bot/python/requirements.txt

@@ -1,6 +0,0 @@
-chess==1.11.2
-torch==2.11.0
-tqdm==4.67.3
-numpy==2.4.4
-rich==13.7.0
-zstandard==0.23.0

modules/bot/python/run_pipeline.bat

@@ -1,66 +0,0 @@
-@echo off
-REM NNUE Training Pipeline for Windows
-
-setlocal enabledelayedexpansion
-
-echo.
-echo === NNUE Training Pipeline ===
-echo.
-
-REM Get the directory where this script is located
-set SCRIPT_DIR=%~dp0
-
-cd /d "%SCRIPT_DIR%"
-
-REM Step 1: Generate positions
-echo Step 1: Generating 500,000 random positions...
-python generate_positions.py positions.txt
-if not exist positions.txt (
-    echo ERROR: positions.txt not created
-    exit /b 1
-)
-echo [OK] Positions generated
-echo.
-
-REM Step 2: Label positions with Stockfish
-echo Step 2: Labeling positions with Stockfish (depth 12^)...
-if "%STOCKFISH_PATH%"=="" (
-    set STOCKFISH_PATH=stockfish
-)
-python label_positions.py positions.txt training_data.jsonl "%STOCKFISH_PATH%"
-if not exist training_data.jsonl (
-    echo ERROR: training_data.jsonl not created
-    exit /b 1
-)
-echo [OK] Positions labeled
-echo.
-
-REM Step 3: Train NNUE model
-echo Step 3: Training NNUE model (20 epochs^)...
-python train_nnue.py training_data.jsonl nnue_weights.pt
-if not exist nnue_weights.pt (
-    echo ERROR: nnue_weights.pt not created
-    exit /b 1
-)
-echo [OK] Model trained
-echo.
-
-REM Step 4: Export weights to Scala
-echo Step 4: Exporting weights to Scala...
-python export_weights.py nnue_weights.pt ..\src\main\scala\de\nowchess\bot\bots\nnue\NNUEWeights.scala
-if not exist ..\src\main\scala\de\nowchess\bot\bots\nnue\NNUEWeights.scala (
-    echo ERROR: NNUEWeights.scala not created
-    exit /b 1
-)
-echo [OK] Weights exported
-echo.
-
-echo === Pipeline Complete ===
-echo.
-echo Next steps:
-echo 1. Navigate to project root: cd ..\..
-echo 2. Compile: .\compile.bat
-echo 3. Test: .\test.bat
-echo.
-
-endlocal