feat: NCS-41 Bot Platform (#33 )

Co-authored-by: Janis <janis@nowchess.de> Reviewed-on: #33 Co-authored-by: Janis <janis.e.20@gmx.de> Co-committed-by: Janis <janis.e.20@gmx.de>
2026-04-19 15:52:08 +02:00
120 changed files with 1190 additions and 2525737 deletions
@@ -47,21 +47,14 @@
  - 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
@@ -86,7 +79,6 @@
 - `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]
@@ -98,10 +90,14 @@
  - 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)
+  - function train_nnue: (data_file, output_file, epochs, batch_size, lr, checkpoint, stockfish_depth, use_versioning, early_stopping_patience, weight_decay, subsample_ratio)
+  - 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)
  - class NNUEDataset
  - _...1 more_
+- `modules/bot/src/main/scala/de/nowchess/bot/Bot.scala`
+  - class Bot
+  - function name
+  - function nextMove
 - `modules/bot/src/main/scala/de/nowchess/bot/BotController.scala`
  - class BotController
  - function getBot
@@ -152,6 +148,7 @@
  - function bestMoveWithTime
  - function loop
  - function loop
+  - _...2 more_
 - `modules/bot/src/main/scala/de/nowchess/bot/logic/MoveOrdering.scala`
  - class MoveOrdering
  - class OrderingContext
@@ -161,7 +158,6 @@
  - function getHistory
  - _...3 more_
 - `modules/bot/src/main/scala/de/nowchess/bot/logic/TranspositionTable.scala`
-  - function advance
  - function probe
  - function store
  - function clear
@@ -185,15 +181,14 @@
  - 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_
 - `modules/core/src/main/scala/de/nowchess/chess/observer/Observer.scala`
  - function context
@@ -203,26 +198,6 @@
  - 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`
@@ -272,13 +247,32 @@
  - 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
+- `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 +295,39 @@

 ## 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/api/src/main/scala/de/nowchess/api/game/GameContext.scala` — imported by **60** files
+- `modules/api/src/main/scala/de/nowchess/api/move/Move.scala` — imported by **40** files
+- `modules/api/src/main/scala/de/nowchess/api/board/Square.scala` — imported by **39** files
+- `modules/api/src/main/scala/de/nowchess/api/board/Color.scala` — imported by **36** files
+- `modules/api/src/main/scala/de/nowchess/api/board/Board.scala` — imported by **22** files
+- `modules/api/src/main/scala/de/nowchess/api/board/PieceType.scala` — imported by **21** files
+- `modules/api/src/main/scala/de/nowchess/api/board/Piece.scala` — imported by **21** 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/rule/src/main/scala/de/nowchess/rules/RuleSet.scala` — imported by **10** 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/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/api/src/main/scala/de/nowchess/api/board/CastlingRights.scala` — imported by **8** files
+- `modules/io/src/main/scala/de/nowchess/io/GameContextImport.scala` — imported by **8** 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/BotDifficulty.scala` — imported by **5** files
+- `modules/io/src/main/scala/de/nowchess/io/GameContextExport.scala` — imported by **5** 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/bot/src/main/scala/de/nowchess/bot/logic/AlphaBetaSearch.scala` — imported by **4** files
+- `modules/bot/src/main/scala/de/nowchess/bot/Bot.scala` — imported by **4** files
+- `modules/core/src/main/scala/de/nowchess/chess/observer/Observer.scala` — imported by **4** 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/api/src/main/scala/de/nowchess/api/game/GameContext.scala` ← `modules/bot/src/main/scala/de/nowchess/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` +55 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/bot/src/main/scala/de/nowchess/bot/Bot.scala`, `modules/bot/src/main/scala/de/nowchess/bot/BotMoveRepetition.scala` +35 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` +34 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/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/MoveOrdering.scala` +31 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` +17 more
+- `modules/api/src/main/scala/de/nowchess/api/board/PieceType.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`, `modules/bot/src/main/scala/de/nowchess/bot/util/PolyglotHash.scala` +16 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` +16 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/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` +5 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/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` +5 more

 ---

@@ -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/api/src/main/scala/de/nowchess/api/game/GameContext.scala` — imported by **60** files
+- `modules/api/src/main/scala/de/nowchess/api/move/Move.scala` — imported by **40** files
+- `modules/api/src/main/scala/de/nowchess/api/board/Square.scala` — imported by **39** files
+- `modules/api/src/main/scala/de/nowchess/api/board/Color.scala` — imported by **36** files
+- `modules/api/src/main/scala/de/nowchess/api/board/Board.scala` — imported by **22** files
+- `modules/api/src/main/scala/de/nowchess/api/board/PieceType.scala` — imported by **21** files
+- `modules/api/src/main/scala/de/nowchess/api/board/Piece.scala` — imported by **21** 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/rule/src/main/scala/de/nowchess/rules/RuleSet.scala` — imported by **10** 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/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/api/src/main/scala/de/nowchess/api/board/CastlingRights.scala` — imported by **8** files
+- `modules/io/src/main/scala/de/nowchess/io/GameContextImport.scala` — imported by **8** 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/BotDifficulty.scala` — imported by **5** files
+- `modules/io/src/main/scala/de/nowchess/io/GameContextExport.scala` — imported by **5** 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/bot/src/main/scala/de/nowchess/bot/logic/AlphaBetaSearch.scala` — imported by **4** files
+- `modules/bot/src/main/scala/de/nowchess/bot/Bot.scala` — imported by **4** files
+- `modules/core/src/main/scala/de/nowchess/chess/observer/Observer.scala` — imported by **4** 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/api/src/main/scala/de/nowchess/api/game/GameContext.scala` ← `modules/bot/src/main/scala/de/nowchess/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` +55 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/bot/src/main/scala/de/nowchess/bot/Bot.scala`, `modules/bot/src/main/scala/de/nowchess/bot/BotMoveRepetition.scala` +35 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` +34 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/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/MoveOrdering.scala` +31 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` +17 more
+- `modules/api/src/main/scala/de/nowchess/api/board/PieceType.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`, `modules/bot/src/main/scala/de/nowchess/bot/util/PolyglotHash.scala` +16 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` +16 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/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` +5 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/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` +5 more
@@ -38,21 +38,14 @@
  - 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
@@ -77,7 +70,6 @@
 - `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]
@@ -89,10 +81,14 @@
  - 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)
+  - function train_nnue: (data_file, output_file, epochs, batch_size, lr, checkpoint, stockfish_depth, use_versioning, early_stopping_patience, weight_decay, subsample_ratio)
+  - 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)
  - class NNUEDataset
  - _...1 more_
+- `modules/bot/src/main/scala/de/nowchess/bot/Bot.scala`
+  - class Bot
+  - function name
+  - function nextMove
 - `modules/bot/src/main/scala/de/nowchess/bot/BotController.scala`
  - class BotController
  - function getBot
@@ -143,6 +139,7 @@
  - function bestMoveWithTime
  - function loop
  - function loop
+  - _...2 more_
 - `modules/bot/src/main/scala/de/nowchess/bot/logic/MoveOrdering.scala`
  - class MoveOrdering
  - class OrderingContext
@@ -152,7 +149,6 @@
  - function getHistory
  - _...3 more_
 - `modules/bot/src/main/scala/de/nowchess/bot/logic/TranspositionTable.scala`
-  - function advance
  - function probe
  - function store
  - function clear
@@ -176,15 +172,14 @@
  - 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_
 - `modules/core/src/main/scala/de/nowchess/chess/observer/Observer.scala`
  - function context
@@ -194,26 +189,6 @@
  - 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`
@@ -263,10 +238,29 @@
  - 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
@@ -1,198 +0,0 @@
-<!DOCTYPE html>
-<html lang="en">
-<head>
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-<meta name="viewport" content="width=device-width, initial-scale=1.0">
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-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>
@@ -15,6 +15,7 @@
            <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>
@@ -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>
@@ -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.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">
+    <profile name="Gradle 2" modules="NowChessSystems.modules.bot.main,NowChessSystems.modules.bot.scoverage,NowChessSystems.modules.bot.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>
@@ -1,6 +0,0 @@
-{
-  "version": "1",
-  "name": "NowChess API",
-  "type": "collection",
-  "ignore": []
-}
@@ -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
-}
@@ -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
-}
@@ -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
-}
@@ -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
-}
@@ -1,4 +0,0 @@
-meta {
-  name: draw
-  seq: 2
-}
@@ -1,3 +0,0 @@
-vars {
-  baseUrl: http://localhost:8080
-}
@@ -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
-}
@@ -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
-}
@@ -1,4 +0,0 @@
-meta {
-  name: export
-  seq: 6
-}
@@ -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"}
-  }
-}
@@ -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
-}
@@ -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
-}
@@ -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
-}
@@ -1,4 +0,0 @@
-meta {
-  name: game
-  seq: 3
-}
@@ -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"}
-  }
-}
@@ -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 *"
-  }
-}
@@ -1,4 +0,0 @@
-meta {
-  name: import
-  seq: 5
-}
@@ -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
-}
@@ -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
-}
@@ -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
-}
@@ -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
-}
@@ -1,3 +0,0 @@
-meta {
-  name: move
-}
@@ -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

    # -------------------------------------------------------------------------
@@ -1,6 +0,0 @@
-# Gradle properties
-quarkusPluginId=io.quarkus
-quarkusPluginVersion=3.32.4
-quarkusPlatformGroupId=io.quarkus.platform
-quarkusPlatformArtifactId=quarkus-bom
-quarkusPlatformVersion=3.32.4
@@ -42,21 +42,3 @@
 * 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))
-##  (2026-04-19)
-
-### 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))
@@ -1,3 +0,0 @@
-package de.nowchess.api.dto
-
-final case class ApiErrorDto(code: String, message: String, field: Option[String])
@@ -1,6 +0,0 @@
-package de.nowchess.api.dto
-
-final case class CreateGameRequestDto(
-    white: Option[PlayerInfoDto],
-    black: Option[PlayerInfoDto],
-)
@@ -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)
@@ -1,8 +0,0 @@
-package de.nowchess.api.dto
-
-final case class GameFullDto(
-    gameId: String,
-    white: PlayerInfoDto,
-    black: PlayerInfoDto,
-    state: GameStateDto,
-)
@@ -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)
@@ -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,
-)
@@ -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)
@@ -1,7 +0,0 @@
-package de.nowchess.api.dto
-
-final case class ImportFenRequestDto(
-    fen: String,
-    white: Option[PlayerInfoDto],
-    black: Option[PlayerInfoDto],
-)
@@ -1,3 +0,0 @@
-package de.nowchess.api.dto
-
-final case class ImportPgnRequestDto(pgn: String)
@@ -1,9 +0,0 @@
-package de.nowchess.api.dto
-
-final case class LegalMoveDto(
-    from: String,
-    to: String,
-    uci: String,
-    moveType: String,
-    promotion: Option[String],
-)
@@ -1,3 +0,0 @@
-package de.nowchess.api.dto
-
-final case class LegalMovesResponseDto(moves: List[LegalMoveDto])
@@ -1,3 +0,0 @@
-package de.nowchess.api.dto
-
-final case class OkResponseDto(ok: Boolean = true)
@@ -1,3 +0,0 @@
-package de.nowchess.api.dto
-
-final case class PlayerInfoDto(id: String, displayName: String)
@@ -1,3 +1,3 @@
 MAJOR=0
-MINOR=8
+MINOR=6
 PATCH=0
@@ -1,66 +0,0 @@
-{
-  "version": 1,
-  "created": "2026-04-13T19:58:38.629943",
-  "total_positions": 3022562,
-  "stockfish_depth": 12,
-  "sources": [
-    {
-      "type": "legacy_import",
-      "path": "data/training_data.jsonl",
-      "count": 2009355,
-      "note": "Migrated from data/training_data.jsonl"
-    },
-    {
-      "type": "test_extend",
-      "count": 4,
-      "actual_count": 3
-    },
-    {
-      "type": "test_new_positions",
-      "count": 3,
-      "actual_count": 3
-    },
-    {
-      "type": "test_mixed",
-      "count": 5,
-      "actual_count": 0
-    },
-    {
-      "type": "test_all_dups",
-      "count": 2,
-      "actual_count": 0
-    },
-    {
-      "type": "guaranteed_unique",
-      "count": 10,
-      "actual_count": 8
-    },
-    {
-      "type": "merged_sources",
-      "count": 600000,
-      "sources": [
-        {
-          "type": "tactical",
-          "count": 600000,
-          "max_puzzles": 600000
-        }
-      ],
-      "actual_count": 599993
-    },
-    {
-      "type": "merged_sources",
-      "count": 500000,
-      "sources": [
-        {
-          "type": "lichess",
-          "count": 500000,
-          "params": {
-            "min_depth": 20,
-            "max_positions": 500000
-          }
-        }
-      ],
-      "actual_count": 500000
-    }
-  ]
-}
@@ -1,5 +0,0 @@
-.gitignore
-!build/*-runner
-!build/*-runner.jar
-!build/lib/*
-!build/quarkus-app/*
@@ -1,41 +0,0 @@
-# Gradle
-.gradle/
-build/
-
-# Eclipse
-.project
-.classpath
-.settings/
-bin/
-
-# IntelliJ
-.idea
-*.ipr
-*.iml
-*.iws
-
-# NetBeans
-nb-configuration.xml
-
-# Visual Studio Code
-.vscode
-.factorypath
-
-# OSX
-.DS_Store
-
-# Vim
-*.swp
-*.swo
-
-# patch
-*.orig
-*.rej
-
-# Local environment
-.env
-
-# Plugin directory
-/.quarkus/cli/plugins/
-# TLS Certificates
-.certs/
@@ -286,58 +286,3 @@
 * correct test board positions and captureOutput/withInput interaction ([f0481e2](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/f0481e2561b779df00925b46ee281dc36a795150))
 * update main class path in build configuration and adjust VCS directory mapping ([7b1f8b1](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/7b1f8b117623d327232a1a92a8a44d18582e0189))
 * update move validation to check for king safety ([#13](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/13)) ([e5e20c5](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/e5e20c566e368b12ca1dc59680c34e9112bf6762))
-##  (2026-04-19)
-
-### Features
-
-* add GameRules stub with PositionStatus enum ([76d4168](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/76d4168038de23e5d6083d4e8f0504fbf31d15a3))
-* add MovedInCheck/Checkmate/Stalemate MoveResult variants (stub dispatch) ([8b7ec57](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/8b7ec57e5ea6ee1615a1883848a426dc07d26364))
-* implement GameRules with isInCheck, legalMoves, gameStatus ([94a02ff](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/94a02ff6849436d9496c70a0f16c21666dae8e4e))
-* implement legal castling ([#1](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/1)) ([00d326c](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/00d326c1ba67711fbe180f04e1100c3f01dd0254))
-* NCS-10 Implement Pawn Promotion ([#12](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/12)) ([13bfc16](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/13bfc16cfe25db78ec607db523ca6d993c13430c))
-* NCS-11 50-move rule ([#9](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/9)) ([412ed98](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/412ed986a95703a3b282276540153480ceed229d))
-* 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-16 Core Separation via Patterns ([#10](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/10)) ([1361dfc](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/1361dfc89553b146864fb8ff3526cf12cf3f293a))
-* NCS-17 Implement basic ScalaFX UI ([#14](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/14)) ([3ff8031](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3ff80318b4f16c59733a46498581a5c27f048287))
-* 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))
-* NCS-6 Implementing FEN & PGN ([#7](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/7)) ([f28e69d](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/f28e69dc181416aa2f221fdc4b45c2cda5efbf07))
-* NCS-9 En passant implementation ([#8](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/8)) ([919beb3](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/919beb3b4bfa8caf2f90976a415fe9b19b7e9747))
-* wire check/checkmate/stalemate into processMove and gameLoop ([5264a22](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/5264a225418b885c5e6ea6411b96f85e38837f6c))
-
-### Bug Fixes
-
-* add missing kings to gameLoop capture test board ([aedd787](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/aedd787b77203c2af934751dba7b784eaf165032))
-* correct test board positions and captureOutput/withInput interaction ([f0481e2](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/f0481e2561b779df00925b46ee281dc36a795150))
-* update main class path in build configuration and adjust VCS directory mapping ([7b1f8b1](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/7b1f8b117623d327232a1a92a8a44d18582e0189))
-* update move validation to check for king safety ([#13](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/13)) ([e5e20c5](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/e5e20c566e368b12ca1dc59680c34e9112bf6762))
-##  (2026-04-19)
-
-### Features
-
-* add GameRules stub with PositionStatus enum ([76d4168](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/76d4168038de23e5d6083d4e8f0504fbf31d15a3))
-* add MovedInCheck/Checkmate/Stalemate MoveResult variants (stub dispatch) ([8b7ec57](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/8b7ec57e5ea6ee1615a1883848a426dc07d26364))
-* implement GameRules with isInCheck, legalMoves, gameStatus ([94a02ff](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/94a02ff6849436d9496c70a0f16c21666dae8e4e))
-* implement legal castling ([#1](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/1)) ([00d326c](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/00d326c1ba67711fbe180f04e1100c3f01dd0254))
-* NCS-10 Implement Pawn Promotion ([#12](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/12)) ([13bfc16](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/13bfc16cfe25db78ec607db523ca6d993c13430c))
-* NCS-11 50-move rule ([#9](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/9)) ([412ed98](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/412ed986a95703a3b282276540153480ceed229d))
-* 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-16 Core Separation via Patterns ([#10](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/10)) ([1361dfc](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/1361dfc89553b146864fb8ff3526cf12cf3f293a))
-* NCS-17 Implement basic ScalaFX UI ([#14](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/14)) ([3ff8031](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3ff80318b4f16c59733a46498581a5c27f048287))
-* 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-40 Rework Draw System ([#34](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/34)) ([0091d50](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/0091d50467e9f955f23570128b96c977c01bc51b))
-* NCS-41 Bot Platform ([#33](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/33)) ([dceab08](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/dceab0875e6d15f7d3958633cf5dd5b29a851b1d))
-* NCS-6 Implementing FEN & PGN ([#7](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/7)) ([f28e69d](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/f28e69dc181416aa2f221fdc4b45c2cda5efbf07))
-* NCS-9 En passant implementation ([#8](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/8)) ([919beb3](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/919beb3b4bfa8caf2f90976a415fe9b19b7e9747))
-* wire check/checkmate/stalemate into processMove and gameLoop ([5264a22](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/5264a225418b885c5e6ea6411b96f85e38837f6c))
-
-### Bug Fixes
-
-* add missing kings to gameLoop capture test board ([aedd787](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/aedd787b77203c2af934751dba7b784eaf165032))
-* correct test board positions and captureOutput/withInput interaction ([f0481e2](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/f0481e2561b779df00925b46ee281dc36a795150))
-* update main class path in build configuration and adjust VCS directory mapping ([7b1f8b1](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/7b1f8b117623d327232a1a92a8a44d18582e0189))
-* update move validation to check for king safety ([#13](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/13)) ([e5e20c5](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/e5e20c566e368b12ca1dc59680c34e9112bf6762))
@@ -1,7 +1,6 @@
 plugins {
    id("scala")
    id("org.scoverage") version "8.1"
-    id("io.quarkus")
 }

 group = "de.nowchess"
@@ -26,11 +25,6 @@ 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("org.scala-lang:scala3-compiler_3") {
@@ -49,58 +43,19 @@ dependencies {
    implementation(project(":modules:rule"))
    implementation(project(":modules:bot"))

-
-    implementation(enforcedPlatform("${quarkusPlatformGroupId}:${quarkusPlatformArtifactId}:${quarkusPlatformVersion}"))
-    implementation("io.quarkus:quarkus-rest")
-    implementation("io.quarkus:quarkus-hibernate-orm")
-    implementation("io.quarkus:quarkus-rest-client-jackson")
-    implementation("io.quarkus:quarkus-rest-client")
-    implementation("io.quarkus:quarkus-rest-jackson")
-    implementation("io.quarkus:quarkus-config-yaml")
-    implementation("io.quarkus:quarkus-smallrye-fault-tolerance")
-    implementation("io.quarkus:quarkus-smallrye-jwt")
-    implementation("io.quarkus:quarkus-smallrye-health")
-    implementation("io.quarkus:quarkus-micrometer")
-    implementation("io.quarkus:quarkus-arc")
-
-    implementation("com.fasterxml.jackson.module:jackson-module-scala_3:${versions["JACKSON_SCALA"]!!}")
-
-
    testImplementation(platform("org.junit:junit-bom:5.13.4"))
    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.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")
-        }
-    }
-}
-
-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")
+        includeEngines("scalatest")
        testLogging {
-            events("passed", "skipped", "failed")
+            events("skipped", "failed")
        }
    }
    finalizedBy(tasks.reportScoverage)
@@ -108,8 +63,3 @@ tasks.test {
 tasks.reportScoverage {
    dependsOn(tasks.test)
 }
-
-tasks.jar {
-    duplicatesStrategy = DuplicatesStrategy.EXCLUDE
-}
-
@@ -1,100 +0,0 @@
-####
-# This Dockerfile is used in order to build a container that runs the Quarkus application in JVM mode
-#
-# Before building the container image run:
-#
-# ./gradlew build
-#
-# Then, build the image with:
-#
-# docker build -f src/main/docker/Dockerfile.jvm -t quarkus/backcore-jvm .
-#
-# Then run the container using:
-#
-# docker run -i --rm -p 8080:8080 quarkus/backcore-jvm
-#
-# If you want to include the debug port into your docker image
-# you will have to expose the debug port (default 5005 being the default) like this :  EXPOSE 8080 5005.
-# Additionally you will have to set -e JAVA_DEBUG=true and -e JAVA_DEBUG_PORT=*:5005
-# when running the container
-#
-# Then run the container using :
-#
-# docker run -i --rm -p 8080:8080 quarkus/backcore-jvm
-#
-# This image uses the `run-java.sh` script to run the application.
-# This scripts computes the command line to execute your Java application, and
-# includes memory/GC tuning.
-# You can configure the behavior using the following environment properties:
-# - JAVA_OPTS: JVM options passed to the `java` command (example: "-verbose:class") - Be aware that this will override
-# the default JVM options, use `JAVA_OPTS_APPEND` to append options
-# - JAVA_OPTS_APPEND: User specified Java options to be appended to generated options
-#   in JAVA_OPTS (example: "-Dsome.property=foo")
-# - JAVA_MAX_MEM_RATIO: Is used when no `-Xmx` option is given in JAVA_OPTS. This is
-#   used to calculate a default maximal heap memory based on a containers restriction.
-#   If used in a container without any memory constraints for the container then this
-#   option has no effect. If there is a memory constraint then `-Xmx` is set to a ratio
-#   of the container available memory as set here. The default is `50` which means 50%
-#   of the available memory is used as an upper boundary. You can skip this mechanism by
-#   setting this value to `0` in which case no `-Xmx` option is added.
-# - JAVA_INITIAL_MEM_RATIO: Is used when no `-Xms` option is given in JAVA_OPTS. This
-#   is used to calculate a default initial heap memory based on the maximum heap memory.
-#   If used in a container without any memory constraints for the container then this
-#   option has no effect. If there is a memory constraint then `-Xms` is set to a ratio
-#   of the `-Xmx` memory as set here. The default is `25` which means 25% of the `-Xmx`
-#   is used as the initial heap size. You can skip this mechanism by setting this value
-#   to `0` in which case no `-Xms` option is added (example: "25")
-# - JAVA_MAX_INITIAL_MEM: Is used when no `-Xms` option is given in JAVA_OPTS.
-#   This is used to calculate the maximum value of the initial heap memory. If used in
-#   a container without any memory constraints for the container then this option has
-#   no effect. If there is a memory constraint then `-Xms` is limited to the value set
-#   here. The default is 4096MB which means the calculated value of `-Xms` never will
-#   be greater than 4096MB. The value of this variable is expressed in MB (example: "4096")
-# - JAVA_DIAGNOSTICS: Set this to get some diagnostics information to standard output
-#   when things are happening. This option, if set to true, will set
-#  `-XX:+UnlockDiagnosticVMOptions`. Disabled by default (example: "true").
-# - JAVA_DEBUG: If set remote debugging will be switched on. Disabled by default (example:
-#    true").
-# - JAVA_DEBUG_PORT: Port used for remote debugging. Defaults to 5005 (example: "8787").
-# - CONTAINER_CORE_LIMIT: A calculated core limit as described in
-#   https://www.kernel.org/doc/Documentation/scheduler/sched-bwc.txt. (example: "2")
-# - CONTAINER_MAX_MEMORY: Memory limit given to the container (example: "1024").
-# - GC_MIN_HEAP_FREE_RATIO: Minimum percentage of heap free after GC to avoid expansion.
-#   (example: "20")
-# - GC_MAX_HEAP_FREE_RATIO: Maximum percentage of heap free after GC to avoid shrinking.
-#   (example: "40")
-# - GC_TIME_RATIO: Specifies the ratio of the time spent outside the garbage collection.
-#   (example: "4")
-# - GC_ADAPTIVE_SIZE_POLICY_WEIGHT: The weighting given to the current GC time versus
-#   previous GC times. (example: "90")
-# - GC_METASPACE_SIZE: The initial metaspace size. (example: "20")
-# - GC_MAX_METASPACE_SIZE: The maximum metaspace size. (example: "100")
-# - GC_CONTAINER_OPTIONS: Specify Java GC to use. The value of this variable should
-#   contain the necessary JRE command-line options to specify the required GC, which
-#   will override the default of `-XX:+UseParallelGC` (example: -XX:+UseG1GC).
-# - HTTPS_PROXY: The location of the https proxy. (example: "myuser@127.0.0.1:8080")
-# - HTTP_PROXY: The location of the http proxy. (example: "myuser@127.0.0.1:8080")
-# - NO_PROXY: A comma separated lists of hosts, IP addresses or domains that can be
-#   accessed directly. (example: "foo.example.com,bar.example.com")
-#
-# You can find more information about the UBI base runtime images and their configuration here:
-# https://rh-openjdk.github.io/redhat-openjdk-containers/
-###
-FROM registry.access.redhat.com/ubi9/openjdk-21-runtime:1.24
-
-ENV LANGUAGE='en_US:en'
-
-
-# We make four distinct layers so if there are application changes the library layers can be re-used
-COPY --chown=185 build/quarkus-app/lib/ /deployments/lib/
-COPY --chown=185 build/quarkus-app/*.jar /deployments/
-COPY --chown=185 build/quarkus-app/app/ /deployments/app/
-COPY --chown=185 build/quarkus-app/quarkus/ /deployments/quarkus/
-
-EXPOSE 8080
-USER 185
-ENV JAVA_OPTS_APPEND="-Dquarkus.http.host=0.0.0.0 -Djava.util.logging.manager=org.jboss.logmanager.LogManager"
-ENV JAVA_APP_JAR="/deployments/quarkus-run.jar"
-
-ENTRYPOINT [ "/opt/jboss/container/java/run/run-java.sh" ]
-
@@ -1,96 +0,0 @@
-####
-# This Dockerfile is used in order to build a container that runs the Quarkus application in JVM mode
-#
-# Before building the container image run:
-#
-# ./gradlew build -Dquarkus.package.jar.type=legacy-jar
-#
-# Then, build the image with:
-#
-# docker build -f src/main/docker/Dockerfile.legacy-jar -t quarkus/backcore-legacy-jar .
-#
-# Then run the container using:
-#
-# docker run -i --rm -p 8080:8080 quarkus/backcore-legacy-jar
-#
-# If you want to include the debug port into your docker image
-# you will have to expose the debug port (default 5005 being the default) like this :  EXPOSE 8080 5005.
-# Additionally you will have to set -e JAVA_DEBUG=true and -e JAVA_DEBUG_PORT=*:5005
-# when running the container
-#
-# Then run the container using :
-#
-# docker run -i --rm -p 8080:8080 quarkus/backcore-legacy-jar
-#
-# This image uses the `run-java.sh` script to run the application.
-# This scripts computes the command line to execute your Java application, and
-# includes memory/GC tuning.
-# You can configure the behavior using the following environment properties:
-# - JAVA_OPTS: JVM options passed to the `java` command (example: "-verbose:class") - Be aware that this will override
-# the default JVM options, use `JAVA_OPTS_APPEND` to append options
-# - JAVA_OPTS_APPEND: User specified Java options to be appended to generated options
-#   in JAVA_OPTS (example: "-Dsome.property=foo")
-# - JAVA_MAX_MEM_RATIO: Is used when no `-Xmx` option is given in JAVA_OPTS. This is
-#   used to calculate a default maximal heap memory based on a containers restriction.
-#   If used in a container without any memory constraints for the container then this
-#   option has no effect. If there is a memory constraint then `-Xmx` is set to a ratio
-#   of the container available memory as set here. The default is `50` which means 50%
-#   of the available memory is used as an upper boundary. You can skip this mechanism by
-#   setting this value to `0` in which case no `-Xmx` option is added.
-# - JAVA_INITIAL_MEM_RATIO: Is used when no `-Xms` option is given in JAVA_OPTS. This
-#   is used to calculate a default initial heap memory based on the maximum heap memory.
-#   If used in a container without any memory constraints for the container then this
-#   option has no effect. If there is a memory constraint then `-Xms` is set to a ratio
-#   of the `-Xmx` memory as set here. The default is `25` which means 25% of the `-Xmx`
-#   is used as the initial heap size. You can skip this mechanism by setting this value
-#   to `0` in which case no `-Xms` option is added (example: "25")
-# - JAVA_MAX_INITIAL_MEM: Is used when no `-Xms` option is given in JAVA_OPTS.
-#   This is used to calculate the maximum value of the initial heap memory. If used in
-#   a container without any memory constraints for the container then this option has
-#   no effect. If there is a memory constraint then `-Xms` is limited to the value set
-#   here. The default is 4096MB which means the calculated value of `-Xms` never will
-#   be greater than 4096MB. The value of this variable is expressed in MB (example: "4096")
-# - JAVA_DIAGNOSTICS: Set this to get some diagnostics information to standard output
-#   when things are happening. This option, if set to true, will set
-#  `-XX:+UnlockDiagnosticVMOptions`. Disabled by default (example: "true").
-# - JAVA_DEBUG: If set remote debugging will be switched on. Disabled by default (example:
-#    true").
-# - JAVA_DEBUG_PORT: Port used for remote debugging. Defaults to 5005 (example: "8787").
-# - CONTAINER_CORE_LIMIT: A calculated core limit as described in
-#   https://www.kernel.org/doc/Documentation/scheduler/sched-bwc.txt. (example: "2")
-# - CONTAINER_MAX_MEMORY: Memory limit given to the container (example: "1024").
-# - GC_MIN_HEAP_FREE_RATIO: Minimum percentage of heap free after GC to avoid expansion.
-#   (example: "20")
-# - GC_MAX_HEAP_FREE_RATIO: Maximum percentage of heap free after GC to avoid shrinking.
-#   (example: "40")
-# - GC_TIME_RATIO: Specifies the ratio of the time spent outside the garbage collection.
-#   (example: "4")
-# - GC_ADAPTIVE_SIZE_POLICY_WEIGHT: The weighting given to the current GC time versus
-#   previous GC times. (example: "90")
-# - GC_METASPACE_SIZE: The initial metaspace size. (example: "20")
-# - GC_MAX_METASPACE_SIZE: The maximum metaspace size. (example: "100")
-# - GC_CONTAINER_OPTIONS: Specify Java GC to use. The value of this variable should
-#   contain the necessary JRE command-line options to specify the required GC, which
-#   will override the default of `-XX:+UseParallelGC` (example: -XX:+UseG1GC).
-# - HTTPS_PROXY: The location of the https proxy. (example: "myuser@127.0.0.1:8080")
-# - HTTP_PROXY: The location of the http proxy. (example: "myuser@127.0.0.1:8080")
-# - NO_PROXY: A comma separated lists of hosts, IP addresses or domains that can be
-#   accessed directly. (example: "foo.example.com,bar.example.com")
-#
-# You can find more information about the UBI base runtime images and their configuration here:
-# https://rh-openjdk.github.io/redhat-openjdk-containers/
-###
-FROM registry.access.redhat.com/ubi9/openjdk-21-runtime:1.24
-
-ENV LANGUAGE='en_US:en'
-
-
-COPY build/lib/* /deployments/lib/
-COPY build/*-runner.jar /deployments/quarkus-run.jar
-
-EXPOSE 8080
-USER 185
-ENV JAVA_OPTS_APPEND="-Dquarkus.http.host=0.0.0.0 -Djava.util.logging.manager=org.jboss.logmanager.LogManager"
-ENV JAVA_APP_JAR="/deployments/quarkus-run.jar"
-
-ENTRYPOINT [ "/opt/jboss/container/java/run/run-java.sh" ]
@@ -1,29 +0,0 @@
-####
-# This Dockerfile is used in order to build a container that runs the Quarkus application in native (no JVM) mode.
-#
-# Before building the container image run:
-#
-# ./gradlew build -Dquarkus.native.enabled=true
-#
-# Then, build the image with:
-#
-# docker build -f src/main/docker/Dockerfile.native -t quarkus/backcore .
-#
-# Then run the container using:
-#
-# docker run -i --rm -p 8080:8080 quarkus/backcore
-#
-# The ` registry.access.redhat.com/ubi9/ubi-minimal:9.7` base image is based on UBI 9.
-# To use UBI 8, switch to `quay.io/ubi8/ubi-minimal:8.10`.
-###
-FROM registry.access.redhat.com/ubi9/ubi-minimal:9.7
-WORKDIR /work/
-RUN chown 1001 /work \
-    && chmod "g+rwX" /work \
-    && chown 1001:root /work
-COPY --chown=1001:root --chmod=0755 build/*-runner /work/application
-
-EXPOSE 8080
-USER 1001
-
-ENTRYPOINT ["./application", "-Dquarkus.http.host=0.0.0.0"]
@@ -1,32 +0,0 @@
-####
-# This Dockerfile is used in order to build a container that runs the Quarkus application in native (no JVM) mode.
-# It uses a micro base image, tuned for Quarkus native executables.
-# It reduces the size of the resulting container image.
-# Check https://quarkus.io/guides/quarkus-runtime-base-image for further information about this image.
-#
-# Before building the container image run:
-#
-# ./gradlew build -Dquarkus.native.enabled=true
-#
-# Then, build the image with:
-#
-# docker build -f src/main/docker/Dockerfile.native-micro -t quarkus/backcore .
-#
-# Then run the container using:
-#
-# docker run -i --rm -p 8080:8080 quarkus/backcore
-#
-# The `quay.io/quarkus/ubi9-quarkus-micro-image:2.0` base image is based on UBI 9.
-# To use UBI 8, switch to `quay.io/quarkus/quarkus-micro-image:2.0`.
-###
-FROM quay.io/quarkus/ubi9-quarkus-micro-image:2.0
-WORKDIR /work/
-RUN chown 1001 /work \
-    && chmod "g+rwX" /work \
-    && chown 1001:root /work
-COPY --chown=1001:root --chmod=0755 build/*-runner /work/application
-
-EXPOSE 8080
-USER 1001
-
-ENTRYPOINT ["./application", "-Dquarkus.http.host=0.0.0.0"]
@@ -1,2 +0,0 @@
-greeting:
-  message: "hello"
@@ -1,6 +0,0 @@
-- This file allow to write SQL commands that will be emitted in test and dev.
-- The commands are commented as their support depends of the database
-- insert into myentity (id, field) values(1, 'field-1');
-- insert into myentity (id, field) values(2, 'field-2');
-- insert into myentity (id, field) values(3, 'field-3');
-- alter sequence myentity_seq restart with 4;
@@ -1,11 +0,0 @@
-package de.nowchess.chess.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)
@@ -31,17 +31,14 @@ class GameEngine(
    else initialContext
  @SuppressWarnings(Array("DisableSyntax.var"))
  private var currentContext: GameContext = contextWithInitialBoard
-  @SuppressWarnings(Array("DisableSyntax.var"))
-  private var pendingDrawOffer: Option[Color] = None
-  private val invoker                         = new CommandInvoker()
+  private val invoker                     = new CommandInvoker()

  private implicit val ec: ExecutionContext = ExecutionContext.global

  // Synchronized accessors for current state
-  def board: Board              = synchronized(currentContext.board)
-  def turn: Color               = synchronized(currentContext.turn)
-  def context: GameContext      = synchronized(currentContext)
-  def pendingDrawOfferBy: Option[Color] = synchronized(pendingDrawOffer)
+  def board: Board         = synchronized(currentContext.board)
+  def turn: Color          = synchronized(currentContext.turn)
+  def context: GameContext = synchronized(currentContext)

  /** Check if undo is available. */
  def canUndo: Boolean = synchronized(invoker.canUndo)
@@ -68,10 +65,24 @@ class GameEngine(
        performRedo()

      case "draw" =>
-        claimDraw()
+        if currentContext.halfMoveClock >= 100 then
+          currentContext = currentContext.withResult(Some(GameResult.Draw(DrawReason.FiftyMoveRule)))
+          invoker.clear()
+          notifyObservers(DrawEvent(currentContext, DrawReason.FiftyMoveRule))
+        else if ruleSet.isThreefoldRepetition(currentContext) then
+          currentContext = currentContext.withResult(Some(GameResult.Draw(DrawReason.ThreefoldRepetition)))
+          invoker.clear()
+          notifyObservers(DrawEvent(currentContext, DrawReason.ThreefoldRepetition))
+        else
+          notifyObservers(
+            InvalidMoveEvent(
+              currentContext,
+              "Draw cannot be claimed: neither the 50-move rule nor threefold repetition has been triggered.",
+            ),
+          )

      case "" =>
-        notifyObservers(InvalidMoveEvent(currentContext, InvalidMoveReason.EmptyInput))
+        notifyObservers(InvalidMoveEvent(currentContext, "Please enter a valid move or command."))

      case moveInput =>
        Parser.parseMove(moveInput) match
@@ -79,7 +90,7 @@ class GameEngine(
            notifyObservers(
              InvalidMoveEvent(
                currentContext,
-                InvalidMoveReason.InvalidMoveFormat,
+                s"Invalid move format '$moveInput'. Use coordinate notation, e.g. e2e4.",
              ),
            )
          case Some((from, to, promotionPiece: Option[PromotionPiece])) =>
@@ -89,26 +100,26 @@ class GameEngine(
  private def handleParsedMove(from: Square, to: Square, promotionPiece: Option[PromotionPiece]): Unit =
    currentContext.board.pieceAt(from) match
      case None =>
-        notifyObservers(InvalidMoveEvent(currentContext, InvalidMoveReason.NoSourcePiece))
+        notifyObservers(InvalidMoveEvent(currentContext, "No piece on that square."))
      case Some(piece) if piece.color != currentContext.turn =>
-        notifyObservers(InvalidMoveEvent(currentContext, InvalidMoveReason.NotYourPiece))
+        notifyObservers(InvalidMoveEvent(currentContext, "That is not your piece."))
      case Some(piece) =>
        val legal = ruleSet.legalMoves(currentContext)(from)
        // Find all legal moves going to `to`
        val candidates = legal.filter(_.to == to)
        candidates match
          case Nil =>
-            notifyObservers(InvalidMoveEvent(currentContext, InvalidMoveReason.IllegalMove))
+            notifyObservers(InvalidMoveEvent(currentContext, "Illegal move."))
          case _ if isPromotionMove(piece, to) =>
            if promotionPiece.isEmpty then
              notifyObservers(
-                InvalidMoveEvent(currentContext, InvalidMoveReason.PromotionPieceRequired),
+                InvalidMoveEvent(currentContext, "Promotion piece required: append q, r, b, or n to the move."),
              )
            else
              candidates.find(_.moveType == MoveType.Promotion(promotionPiece.get)) match
                case None =>
                  notifyObservers(
-                    InvalidMoveEvent(currentContext, InvalidMoveReason.PromotionPieceInvalid),
+                    InvalidMoveEvent(currentContext, "Error completing promotion: no matching legal move."),
                  )
                case Some(move) => executeMove(move)
          case move :: _ =>
@@ -126,78 +137,6 @@ class GameEngine(
  /** Redo the last undone move. */
  def redo(): Unit = synchronized(performRedo())

-  /** Resign from the game. The opponent wins. */
-  def resign(color: Color): Unit = synchronized {
-    if currentContext.result.isDefined then
-      notifyObservers(InvalidMoveEvent(currentContext, InvalidMoveReason.GameAlreadyOver))
-    else
-      currentContext = currentContext.withResult(Some(GameResult.Win(color.opposite)))
-      pendingDrawOffer = None
-      invoker.clear()
-      notifyObservers(ResignEvent(currentContext, color))
-  }
-
-  /** Offer a draw. */
-  def offerDraw(color: Color): Unit = synchronized {
-    if currentContext.result.isDefined then
-      notifyObservers(InvalidMoveEvent(currentContext, InvalidMoveReason.GameAlreadyOver))
-    else
-      pendingDrawOffer match
-        case Some(_) =>
-          notifyObservers(InvalidMoveEvent(currentContext, InvalidMoveReason.DrawOfferPending))
-        case None =>
-          pendingDrawOffer = Some(color)
-          notifyObservers(DrawOfferEvent(currentContext, color))
-  }
-
-  /** Accept a pending draw offer. */
-  def acceptDraw(color: Color): Unit = synchronized {
-    if currentContext.result.isDefined then
-      notifyObservers(InvalidMoveEvent(currentContext, InvalidMoveReason.GameAlreadyOver))
-    else
-      pendingDrawOffer match
-        case None =>
-          notifyObservers(InvalidMoveEvent(currentContext, InvalidMoveReason.NoDrawOfferToAccept))
-        case Some(offerer) if offerer == color =>
-          notifyObservers(InvalidMoveEvent(currentContext, InvalidMoveReason.CannotAcceptOwnDrawOffer))
-        case Some(_) =>
-          currentContext = currentContext.withResult(Some(GameResult.Draw(DrawReason.Agreement)))
-          pendingDrawOffer = None
-          invoker.clear()
-          notifyObservers(DrawEvent(currentContext, DrawReason.Agreement))
-  }
-
-  /** Decline a pending draw offer. */
-  def declineDraw(color: Color): Unit = synchronized {
-    if currentContext.result.isDefined then
-      notifyObservers(InvalidMoveEvent(currentContext, InvalidMoveReason.GameAlreadyOver))
-    else
-      pendingDrawOffer match
-        case None =>
-          notifyObservers(InvalidMoveEvent(currentContext, InvalidMoveReason.NoDrawOfferToDecline))
-        case Some(offerer) if offerer == color =>
-          notifyObservers(InvalidMoveEvent(currentContext, InvalidMoveReason.CannotDeclineOwnDrawOffer))
-        case Some(_) =>
-          pendingDrawOffer = None
-          notifyObservers(DrawOfferDeclinedEvent(currentContext, color))
-  }
-
-  /** Claim a draw by fifty-move rule or threefold repetition. */
-  def claimDraw(): Unit = synchronized {
-    if currentContext.result.isDefined then
-      notifyObservers(InvalidMoveEvent(currentContext, InvalidMoveReason.GameAlreadyOver))
-    else if currentContext.halfMoveClock >= 100 then
-      currentContext = currentContext.withResult(Some(GameResult.Draw(DrawReason.FiftyMoveRule)))
-      invoker.clear()
-      notifyObservers(DrawEvent(currentContext, DrawReason.FiftyMoveRule))
-    else if ruleSet.isThreefoldRepetition(currentContext) then
-      currentContext = currentContext.withResult(Some(GameResult.Draw(DrawReason.ThreefoldRepetition)))
-      invoker.clear()
-      notifyObservers(DrawEvent(currentContext, DrawReason.ThreefoldRepetition))
-    else
-      notifyObservers(InvalidMoveEvent(currentContext, InvalidMoveReason.DrawCannotBeClaimed))
-  }
-
  /** Load a game using the provided importer. If the imported context has moves, they are replayed through the command
    * system. Otherwise, the position is set directly. Notifies observers with PgnLoadedEvent on success.
    */
@@ -206,7 +145,6 @@ class GameEngine(
      case Left(err) => Left(err)
      case Right(ctx) =>
        replayGame(ctx).map { _ =>
-          pendingDrawOffer = None
          notifyObservers(PgnLoadedEvent(currentContext))
        }
  }
@@ -248,7 +186,6 @@ class GameEngine(
      if newContext.moves.isEmpty then newContext.copy(initialBoard = newContext.board)
      else newContext
    currentContext = contextWithInitialBoard
-    pendingDrawOffer = None
    invoker.clear()
    notifyObservers(BoardResetEvent(currentContext))
  }
@@ -256,27 +193,10 @@ class GameEngine(
  /** Reset the board to initial position. */
  def reset(): Unit = synchronized {
    currentContext = GameContext.initial
-    pendingDrawOffer = None
    invoker.clear()
    notifyObservers(BoardResetEvent(currentContext))
  }

-  /** Resign the game on behalf of the side to move. */
-  def resign(): Unit = synchronized {
-    if currentContext.result.isEmpty then
-      val winner = currentContext.turn.opposite
-      currentContext = currentContext.withResult(Some(GameResult.Win(winner)))
-      invoker.clear()
-  }
-
-  /** Apply a draw result directly (for agreement, fifty-move claim, etc.). */
-  def applyDraw(reason: DrawReason): Unit = synchronized {
-    if currentContext.result.isEmpty then
-      currentContext = currentContext.withResult(Some(GameResult.Draw(reason)))
-      invoker.clear()
-      notifyObservers(DrawEvent(currentContext, reason))
-  }
-
  /** Kick off play when the side to move is a bot (e.g. bot-vs-bot from initial position). */
  def startGame(): Unit = synchronized(requestBotMoveIfNeeded())

@@ -403,9 +323,9 @@ class GameEngine(
          legal.find(m => m.to == to && m.moveType == move.moveType) match
            case Some(legalMove) => executeMove(legalMove)
            case None =>
-              notifyObservers(InvalidMoveEvent(currentContext, InvalidMoveReason.BotMoveIllegal))
+              notifyObservers(InvalidMoveEvent(currentContext, s"Bot move ${from}${to} is illegal"))
        case _ =>
-          notifyObservers(InvalidMoveEvent(currentContext, InvalidMoveReason.BotMoveInvalidSource))
+          notifyObservers(InvalidMoveEvent(currentContext, "Bot move has invalid source square"))
    }

  private def handleBotNoMove(): Unit =
@@ -424,7 +344,7 @@ class GameEngine(
          moveCmd.previousContext.foreach(currentContext = _)
          invoker.undo()
          notifyObservers(MoveUndoneEvent(currentContext, moveCmd.notation))
-    else notifyObservers(InvalidMoveEvent(currentContext, InvalidMoveReason.NothingToUndo))
+    else notifyObservers(InvalidMoveEvent(currentContext, "Nothing to undo."))

  private def performRedo(): Unit =
    if invoker.canRedo then
@@ -444,4 +364,4 @@ class GameEngine(
                capturedDesc,
              ),
            )
-    else notifyObservers(InvalidMoveEvent(currentContext, InvalidMoveReason.NothingToRedo))
+    else notifyObservers(InvalidMoveEvent(currentContext, "Nothing to redo."))
@@ -1,13 +0,0 @@
-package de.nowchess.chess.exception
-
-class ApiException(
-    val status: Int,
-    val code: String,
-    message: String,
-    val field: Option[String] = None,
-) extends RuntimeException(message)
-
-class GameNotFoundException(gameId: String) extends ApiException(404, "GAME_NOT_FOUND", s"Game $gameId not found")
-
-class BadRequestException(code: String, message: String, field: Option[String] = None)
-    extends ApiException(400, code, message, field)
@@ -1,14 +0,0 @@
-package de.nowchess.chess.exception
-
-import de.nowchess.api.dto.ApiErrorDto
-import jakarta.ws.rs.core.{MediaType, Response}
-import jakarta.ws.rs.ext.{ExceptionMapper, Provider}
-
-@Provider
-class ApiExceptionMapper extends ExceptionMapper[ApiException]:
-  def toResponse(ex: ApiException): Response =
-    Response
-      .status(ex.status)
-      .entity(ApiErrorDto(ex.code, ex.getMessage, ex.field))
-      .`type`(MediaType.APPLICATION_JSON)
-      .build()
@@ -1,21 +0,0 @@
-package de.nowchess.chess.observer
-
-enum InvalidMoveReason:
-  case GameAlreadyOver
-  case NoSourcePiece
-  case NotYourPiece
-  case IllegalMove
-  case PromotionPieceRequired
-  case PromotionPieceInvalid
-  case InvalidMoveFormat
-  case EmptyInput
-  case DrawCannotBeClaimed
-  case NothingToUndo
-  case NothingToRedo
-  case BotMoveIllegal
-  case BotMoveInvalidSource
-  case DrawOfferPending
-  case NoDrawOfferToAccept
-  case CannotAcceptOwnDrawOffer
-  case NoDrawOfferToDecline
-  case CannotDeclineOwnDrawOffer
@@ -36,7 +36,7 @@ case class DrawEvent(
 /** Fired when a move is invalid. */
 case class InvalidMoveEvent(
    context: GameContext,
-    reason: InvalidMoveReason,
+    reason: String,
 ) extends GameEvent

 /** Fired when the board is reset. */
@@ -74,24 +74,6 @@ case class PgnLoadedEvent(
    context: GameContext,
 ) extends GameEvent

-/** Fired when a player resigns. The opponent wins. */
-case class ResignEvent(
-    context: GameContext,
-    resignedColor: Color,
-) extends GameEvent
-
-/** Fired when a player offers a draw. Waiting for opponent to accept or decline. */
-case class DrawOfferEvent(
-    context: GameContext,
-    offeredBy: Color,
-) extends GameEvent
-
-/** Fired when the opponent declines a draw offer. */
-case class DrawOfferDeclinedEvent(
-    context: GameContext,
-    declinedBy: Color,
-) extends GameEvent
-
 /** Observer trait: implement to receive game state updates. */
 trait Observer:
  def onGameEvent(event: GameEvent): Unit
@@ -1,13 +0,0 @@
-package de.nowchess.chess.registry
-
-import de.nowchess.api.board.Color
-import de.nowchess.api.player.PlayerInfo
-import de.nowchess.chess.engine.GameEngine
-
-final case class GameEntry(
-    gameId: String,
-    engine: GameEngine,
-    white: PlayerInfo,
-    black: PlayerInfo,
-    resigned: Boolean = false,
-)
@@ -1,7 +0,0 @@
-package de.nowchess.chess.registry
-
-trait GameRegistry:
-  def store(entry: GameEntry): Unit
-  def get(gameId: String): Option[GameEntry]
-  def update(entry: GameEntry): Unit
-  def generateId(): String
@@ -1,22 +0,0 @@
-package de.nowchess.chess.registry
-
-import jakarta.enterprise.context.ApplicationScoped
-import java.util.concurrent.ConcurrentHashMap
-import scala.util.Random
-
-@ApplicationScoped
-class GameRegistryImpl extends GameRegistry:
-  private val games = ConcurrentHashMap[String, GameEntry]()
-
-  def store(entry: GameEntry): Unit =
-    games.put(entry.gameId, entry)
-
-  def get(gameId: String): Option[GameEntry] =
-    Option(games.get(gameId))
-
-  def update(entry: GameEntry): Unit =
-    games.put(entry.gameId, entry)
-
-  def generateId(): String =
-    val chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789"
-    Iterator.continually(Random.nextInt(chars.length)).map(chars).take(8).mkString
@@ -1,305 +0,0 @@
-package de.nowchess.chess.resource
-
-import com.fasterxml.jackson.databind.ObjectMapper
-import de.nowchess.api.board.Square
-import de.nowchess.api.dto.*
-import de.nowchess.api.game.{DrawReason, GameContext, GameResult}
-import de.nowchess.api.move.{Move, MoveType, PromotionPiece}
-import de.nowchess.api.player.{PlayerId, PlayerInfo}
-import de.nowchess.chess.controller.Parser
-import de.nowchess.chess.engine.GameEngine
-import de.nowchess.chess.exception.{BadRequestException, GameNotFoundException}
-import de.nowchess.chess.observer.*
-import de.nowchess.chess.registry.{GameEntry, GameRegistry}
-import de.nowchess.io.fen.{FenExporter, FenParser}
-import de.nowchess.io.pgn.{PgnExporter, PgnParser}
-import io.smallrye.mutiny.Multi
-import jakarta.enterprise.context.ApplicationScoped
-import jakarta.inject.Inject
-import jakarta.ws.rs.*
-import jakarta.ws.rs.core.{MediaType, Response}
-
-import java.util.concurrent.atomic.AtomicReference
-import scala.compiletime.uninitialized
-
-@Path("/api/board/game")
-@ApplicationScoped
-class GameResource:
-
-  // scalafix:off DisableSyntax.var
-  @Inject
-  var registry: GameRegistry = uninitialized
-
-  @Inject
-  var objectMapper: ObjectMapper = uninitialized
-  // scalafix:on DisableSyntax.var
-
-  private val DefaultWhite = PlayerInfo(PlayerId("p1"), "Player 1")
-  private val DefaultBlack = PlayerInfo(PlayerId("p2"), "Player 2")
-
-  // ── mapping ──────────────────────────────────────────────────────────────
-
-  private def statusOf(entry: GameEntry): String =
-    if entry.engine.pendingDrawOfferBy.isDefined then "drawOffered"
-    else
-      val ctx = entry.engine.context
-      ctx.result match
-        case Some(GameResult.Win(_)) =>
-          if entry.resigned then "resign" else "checkmate"
-        case Some(GameResult.Draw(DrawReason.Stalemate))            => "stalemate"
-        case Some(GameResult.Draw(DrawReason.InsufficientMaterial)) => "insufficientMaterial"
-        case Some(GameResult.Draw(_))                               => "draw"
-        case None =>
-          if ctx.halfMoveClock >= 100 then "fiftyMoveAvailable"
-          else if entry.engine.ruleSet.isCheck(ctx) then "check"
-          else "started"
-
-  private def moveToUci(move: Move): String =
-    val base = s"${move.from}${move.to}"
-    move.moveType match
-      case MoveType.Promotion(PromotionPiece.Queen)  => s"${base}q"
-      case MoveType.Promotion(PromotionPiece.Rook)   => s"${base}r"
-      case MoveType.Promotion(PromotionPiece.Bishop) => s"${base}b"
-      case MoveType.Promotion(PromotionPiece.Knight) => s"${base}n"
-      case _                                         => base
-
-  private def toLegalMoveDto(move: Move): LegalMoveDto =
-    val (moveTypeStr, promotionStr) = move.moveType match
-      case MoveType.Normal(false)                    => ("normal", None)
-      case MoveType.Normal(true)                     => ("capture", None)
-      case MoveType.CastleKingside                   => ("castleKingside", None)
-      case MoveType.CastleQueenside                  => ("castleQueenside", None)
-      case MoveType.EnPassant                        => ("enPassant", None)
-      case MoveType.Promotion(PromotionPiece.Queen)  => ("promotion", Some("queen"))
-      case MoveType.Promotion(PromotionPiece.Rook)   => ("promotion", Some("rook"))
-      case MoveType.Promotion(PromotionPiece.Bishop) => ("promotion", Some("bishop"))
-      case MoveType.Promotion(PromotionPiece.Knight) => ("promotion", Some("knight"))
-    LegalMoveDto(move.from.toString, move.to.toString, moveToUci(move), moveTypeStr, promotionStr)
-
-  private def toPlayerDto(info: PlayerInfo): PlayerInfoDto =
-    PlayerInfoDto(info.id.value, info.displayName)
-
-  private def toGameStateDto(entry: GameEntry): GameStateDto =
-    val ctx = entry.engine.context
-    GameStateDto(
-      fen = FenExporter.exportGameContext(ctx),
-      pgn = PgnExporter.exportGame(
-        Map(
-          "Event"  -> "NowChess game",
-          "White"  -> entry.white.displayName,
-          "Black"  -> entry.black.displayName,
-          "Result" -> "*",
-        ),
-        ctx.moves,
-      ),
-      turn = ctx.turn.label.toLowerCase,
-      status = statusOf(entry),
-      winner = ctx.result.collect { case GameResult.Win(c) => c.label.toLowerCase },
-      moves = ctx.moves.map(moveToUci),
-      undoAvailable = entry.engine.canUndo,
-      redoAvailable = entry.engine.canRedo,
-    )
-
-  private def toGameFullDto(entry: GameEntry): GameFullDto =
-    GameFullDto(entry.gameId, toPlayerDto(entry.white), toPlayerDto(entry.black), toGameStateDto(entry))
-
-  private def playerInfoFrom(dto: Option[PlayerInfoDto], default: PlayerInfo): PlayerInfo =
-    dto.fold(default)(d => PlayerInfo(PlayerId(d.id), d.displayName))
-
-  private def newEntry(ctx: GameContext, white: PlayerInfo, black: PlayerInfo): GameEntry =
-    GameEntry(registry.generateId(), GameEngine(initialContext = ctx), white, black)
-
-  private def applyMoveInput(engine: GameEngine, uci: String): Option[String] =
-    val error = new AtomicReference[Option[String]](None)
-    val obs = new Observer:
-      def onGameEvent(e: GameEvent): Unit = e match
-        case InvalidMoveEvent(_, reason) => error.set(Some(reason.toString))
-        case _                           => ()
-    engine.subscribe(obs)
-    engine.processUserInput(uci)
-    engine.unsubscribe(obs)
-    error.get()
-
-  // ── response helpers ─────────────────────────────────────────────────────
-
-  private def ok(body: AnyRef): Response      = Response.ok(body).build()
-  private def created(body: AnyRef): Response = Response.status(Response.Status.CREATED).entity(body).build()
-
-  // ── endpoints ────────────────────────────────────────────────────────────
-  // scalafix:off DisableSyntax.throw
-
-  @POST
-  @Consumes(Array(MediaType.APPLICATION_JSON))
-  @Produces(Array(MediaType.APPLICATION_JSON))
-  def createGame(body: CreateGameRequestDto): Response =
-    val req   = Option(body).getOrElse(CreateGameRequestDto(None, None))
-    val white = playerInfoFrom(req.white, DefaultWhite)
-    val black = playerInfoFrom(req.black, DefaultBlack)
-    val entry = newEntry(GameContext.initial, white, black)
-    registry.store(entry)
-    created(toGameFullDto(entry))
-
-  @GET
-  @Path("/{gameId}")
-  @Produces(Array(MediaType.APPLICATION_JSON))
-  def getGame(@PathParam("gameId") gameId: String): Response =
-    val entry = registry.get(gameId).getOrElse(throw GameNotFoundException(gameId))
-    ok(toGameFullDto(entry))
-
-  @GET
-  @Path("/{gameId}/stream")
-  @Produces(Array("application/x-ndjson"))
-  def streamGame(@PathParam("gameId") gameId: String): Multi[String] =
-    val entry = registry.get(gameId).getOrElse(throw GameNotFoundException(gameId))
-    Multi
-      .createFrom()
-      .emitter[String] { emitter =>
-        emitter.emit(objectMapper.writeValueAsString(GameFullEventDto(toGameFullDto(entry))) + "\n")
-        val obs = new Observer:
-          def onGameEvent(event: GameEvent): Unit =
-            registry.get(gameId).foreach { updated =>
-              emitter.emit(
-                objectMapper.writeValueAsString(GameStateEventDto(toGameStateDto(updated))) + "\n",
-              )
-            }
-        entry.engine.subscribe(obs)
-        emitter.onTermination(() => entry.engine.unsubscribe(obs))
-      }
-
-  @POST
-  @Path("/{gameId}/resign")
-  @Produces(Array(MediaType.APPLICATION_JSON))
-  def resignGame(@PathParam("gameId") gameId: String): Response =
-    val entry = registry.get(gameId).getOrElse(throw GameNotFoundException(gameId))
-    if entry.engine.context.result.isDefined then throw BadRequestException("GAME_OVER", "Game is already over")
-    entry.engine.resign()
-    registry.update(entry.copy(resigned = true))
-    ok(OkResponseDto())
-
-  @POST
-  @Path("/{gameId}/move/{uci}")
-  @Produces(Array(MediaType.APPLICATION_JSON))
-  def makeMove(@PathParam("gameId") gameId: String, @PathParam("uci") uci: String): Response =
-    val entry = registry.get(gameId).getOrElse(throw GameNotFoundException(gameId))
-    if entry.engine.context.result.isDefined then throw BadRequestException("GAME_OVER", "Game is already over")
-    val (from, to, promoOpt) = Parser
-      .parseMove(uci)
-      .getOrElse(throw BadRequestException("INVALID_UCI", s"Invalid UCI notation: $uci", Some("uci")))
-    val candidates  = entry.engine.ruleSet.legalMoves(entry.engine.context)(from).filter(_.to == to)
-    val isPromotion = candidates.exists { case Move(_, _, MoveType.Promotion(_)) => true; case _ => false }
-    if candidates.isEmpty || (isPromotion && promoOpt.isEmpty) then
-      throw BadRequestException("INVALID_MOVE", s"$uci is not a legal move", Some("uci"))
-    applyMoveInput(entry.engine, uci).foreach(err => throw BadRequestException("INVALID_MOVE", err, Some("uci")))
-    ok(toGameStateDto(entry))
-
-  @GET
-  @Path("/{gameId}/moves")
-  @Produces(Array(MediaType.APPLICATION_JSON))
-  def getLegalMoves(
-      @PathParam("gameId") gameId: String,
-      @QueryParam("square") square: String,
-  ): Response =
-    val entry = registry.get(gameId).getOrElse(throw GameNotFoundException(gameId))
-    val ctx   = entry.engine.context
-    val moves =
-      if Option(square).isEmpty || square.isEmpty then entry.engine.ruleSet.allLegalMoves(ctx)
-      else
-        val sq = Square
-          .fromAlgebraic(square)
-          .getOrElse(throw BadRequestException("INVALID_SQUARE", s"Invalid square: $square", Some("square")))
-        entry.engine.ruleSet.legalMoves(ctx)(sq)
-    ok(LegalMovesResponseDto(moves.map(toLegalMoveDto)))
-
-  @POST
-  @Path("/{gameId}/undo")
-  @Produces(Array(MediaType.APPLICATION_JSON))
-  def undoMove(@PathParam("gameId") gameId: String): Response =
-    val entry = registry.get(gameId).getOrElse(throw GameNotFoundException(gameId))
-    if !entry.engine.canUndo then throw BadRequestException("NO_UNDO", "No moves to undo")
-    entry.engine.undo()
-    ok(toGameStateDto(entry))
-
-  @POST
-  @Path("/{gameId}/redo")
-  @Produces(Array(MediaType.APPLICATION_JSON))
-  def redoMove(@PathParam("gameId") gameId: String): Response =
-    val entry = registry.get(gameId).getOrElse(throw GameNotFoundException(gameId))
-    if !entry.engine.canRedo then throw BadRequestException("NO_REDO", "No moves to redo")
-    entry.engine.redo()
-    ok(toGameStateDto(entry))
-
-  @POST
-  @Path("/{gameId}/draw/{action}")
-  @Produces(Array(MediaType.APPLICATION_JSON))
-  def drawAction(
-      @PathParam("gameId") gameId: String,
-      @PathParam("action") action: String,
-  ): Response =
-    val entry = registry.get(gameId).getOrElse(throw GameNotFoundException(gameId))
-    if entry.engine.context.result.isDefined then throw BadRequestException("GAME_OVER", "Game is already over")
-    action match
-      case "offer" =>
-        entry.engine.offerDraw(entry.engine.context.turn)
-        ok(OkResponseDto())
-      case "accept" =>
-        entry.engine.acceptDraw(entry.engine.context.turn)
-        ok(OkResponseDto())
-      case "decline" =>
-        entry.engine.declineDraw(entry.engine.context.turn)
-        ok(OkResponseDto())
-      case "claim" =>
-        entry.engine.claimDraw()
-        ok(OkResponseDto())
-      case _ =>
-        throw BadRequestException("INVALID_ACTION", s"Unknown draw action: $action", Some("action"))
-
-  @POST
-  @Path("/import/fen")
-  @Consumes(Array(MediaType.APPLICATION_JSON))
-  @Produces(Array(MediaType.APPLICATION_JSON))
-  def importFen(body: ImportFenRequestDto): Response =
-    val ctx = FenParser.parseFen(body.fen) match
-      case Left(err)  => throw BadRequestException("INVALID_FEN", err, Some("fen"))
-      case Right(ctx) => ctx
-    val white = playerInfoFrom(body.white, DefaultWhite)
-    val black = playerInfoFrom(body.black, DefaultBlack)
-    val entry = newEntry(ctx, white, black)
-    registry.store(entry)
-    created(toGameFullDto(entry))
-
-  @POST
-  @Path("/import/pgn")
-  @Consumes(Array(MediaType.APPLICATION_JSON))
-  @Produces(Array(MediaType.APPLICATION_JSON))
-  def importPgn(body: ImportPgnRequestDto): Response =
-    val engine = GameEngine()
-    engine.loadGame(PgnParser, body.pgn) match
-      case Left(err) => throw BadRequestException("INVALID_PGN", err, Some("pgn"))
-      case Right(_)  => ()
-    val entry = GameEntry(registry.generateId(), engine, DefaultWhite, DefaultBlack)
-    registry.store(entry)
-    created(toGameFullDto(entry))
-
-  @GET
-  @Path("/{gameId}/export/fen")
-  @Produces(Array(MediaType.TEXT_PLAIN))
-  def exportFen(@PathParam("gameId") gameId: String): Response =
-    val entry = registry.get(gameId).getOrElse(throw GameNotFoundException(gameId))
-    ok(FenExporter.exportGameContext(entry.engine.context))
-
-  @GET
-  @Path("/{gameId}/export/pgn")
-  @Produces(Array("application/x-chess-pgn"))
-  def exportPgn(@PathParam("gameId") gameId: String): Response =
-    val entry = registry.get(gameId).getOrElse(throw GameNotFoundException(gameId))
-    val pgn = PgnExporter.exportGame(
-      Map(
-        "Event"  -> "NowChess game",
-        "White"  -> entry.white.displayName,
-        "Black"  -> entry.black.displayName,
-        "Result" -> "*",
-      ),
-      entry.engine.context.moves,
-    )
-    ok(pgn)
-  // scalafix:on DisableSyntax.throw
@@ -1,241 +0,0 @@
-package de.nowchess.chess.engine
-
-import scala.collection.mutable
-import de.nowchess.api.board.Color
-import de.nowchess.api.game.{DrawReason, GameResult}
-import de.nowchess.chess.observer.{
-  DrawEvent,
-  DrawOfferDeclinedEvent,
-  DrawOfferEvent,
-  GameEvent,
-  InvalidMoveEvent,
-  InvalidMoveReason,
-  Observer,
-}
-import org.scalatest.funsuite.AnyFunSuite
-import org.scalatest.matchers.should.Matchers
-
-class GameEngineDrawOfferTest extends AnyFunSuite with Matchers:
-
-  test("White offers draw"):
-    val engine   = new GameEngine()
-    val observer = new DrawOfferMockObserver()
-    engine.subscribe(observer)
-
-    engine.offerDraw(Color.White)
-
-    observer.events should have length 1
-    observer.events.head match
-      case event: DrawOfferEvent =>
-        event.offeredBy shouldBe Color.White
-      case other =>
-        fail(s"Expected DrawOfferEvent, but got $other")
-
-  test("Black accepts White's draw offer"):
-    val engine   = new GameEngine()
-    val observer = new DrawOfferMockObserver()
-    engine.subscribe(observer)
-
-    engine.offerDraw(Color.White)
-    observer.events.clear()
-    engine.acceptDraw(Color.Black)
-
-    observer.events should have length 1
-    observer.events.head match
-      case event: DrawEvent =>
-        event.reason shouldBe DrawReason.Agreement
-        event.context.result shouldBe Some(GameResult.Draw(DrawReason.Agreement))
-      case other =>
-        fail(s"Expected DrawEvent, but got $other")
-
-  test("Black declines White's draw offer"):
-    val engine   = new GameEngine()
-    val observer = new DrawOfferMockObserver()
-    engine.subscribe(observer)
-
-    engine.offerDraw(Color.White)
-    observer.events.clear()
-    engine.declineDraw(Color.Black)
-
-    observer.events should have length 1
-    observer.events.head match
-      case event: DrawOfferDeclinedEvent =>
-        event.declinedBy shouldBe Color.Black
-      case other =>
-        fail(s"Expected DrawOfferDeclinedEvent, but got $other")
-
-  test("Black offers draw"):
-    val engine   = new GameEngine()
-    val observer = new DrawOfferMockObserver()
-    engine.subscribe(observer)
-
-    engine.offerDraw(Color.Black)
-
-    observer.events should have length 1
-    observer.events.head match
-      case event: DrawOfferEvent =>
-        event.offeredBy shouldBe Color.Black
-      case other =>
-        fail(s"Expected DrawOfferEvent, but got $other")
-
-  test("White accepts Black's draw offer"):
-    val engine   = new GameEngine()
-    val observer = new DrawOfferMockObserver()
-    engine.subscribe(observer)
-
-    engine.offerDraw(Color.Black)
-    observer.events.clear()
-    engine.acceptDraw(Color.White)
-
-    observer.events should have length 1
-    observer.events.head match
-      case event: DrawEvent =>
-        event.reason shouldBe DrawReason.Agreement
-        event.context.result shouldBe Some(GameResult.Draw(DrawReason.Agreement))
-      case other =>
-        fail(s"Expected DrawEvent, but got $other")
-
-  test("Cannot accept draw when no offer pending"):
-    val engine   = new GameEngine()
-    val observer = new DrawOfferMockObserver()
-    engine.subscribe(observer)
-
-    engine.acceptDraw(Color.Black)
-
-    observer.events should have length 1
-    observer.events.head match
-      case event: InvalidMoveEvent =>
-        event.reason shouldBe InvalidMoveReason.NoDrawOfferToAccept
-      case other =>
-        fail(s"Expected InvalidMoveEvent, but got $other")
-
-  test("Cannot decline draw when no offer pending"):
-    val engine   = new GameEngine()
-    val observer = new DrawOfferMockObserver()
-    engine.subscribe(observer)
-
-    engine.declineDraw(Color.Black)
-
-    observer.events should have length 1
-    observer.events.head match
-      case event: InvalidMoveEvent =>
-        event.reason shouldBe InvalidMoveReason.NoDrawOfferToDecline
-      case other =>
-        fail(s"Expected InvalidMoveEvent, but got $other")
-
-  test("Cannot offer draw when game is already over"):
-    val engine   = new GameEngine()
-    val observer = new DrawOfferMockObserver()
-    engine.subscribe(observer)
-
-    // End the game with checkmate
-    engine.processUserInput("f2f3")
-    engine.processUserInput("e7e5")
-    engine.processUserInput("g2g4")
-    observer.events.clear()
-    engine.processUserInput("d8h4")
-
-    // Try to offer draw
-    observer.events.clear()
-    engine.offerDraw(Color.White)
-
-    observer.events should have length 1
-    observer.events.head match
-      case event: InvalidMoveEvent =>
-        event.reason shouldBe InvalidMoveReason.GameAlreadyOver
-      case other =>
-        fail(s"Expected InvalidMoveEvent, but got $other")
-
-  test("Cannot accept your own draw offer"):
-    val engine   = new GameEngine()
-    val observer = new DrawOfferMockObserver()
-    engine.subscribe(observer)
-
-    engine.offerDraw(Color.White)
-    observer.events.clear()
-    engine.acceptDraw(Color.White)
-
-    observer.events should have length 1
-    observer.events.head match
-      case event: InvalidMoveEvent =>
-        event.reason shouldBe InvalidMoveReason.CannotAcceptOwnDrawOffer
-      case other =>
-        fail(s"Expected InvalidMoveEvent, but got $other")
-
-  test("Cannot decline your own draw offer"):
-    val engine   = new GameEngine()
-    val observer = new DrawOfferMockObserver()
-    engine.subscribe(observer)
-
-    engine.offerDraw(Color.White)
-    observer.events.clear()
-    engine.declineDraw(Color.White)
-
-    observer.events should have length 1
-    observer.events.head match
-      case event: InvalidMoveEvent =>
-        event.reason shouldBe InvalidMoveReason.CannotDeclineOwnDrawOffer
-      case other =>
-        fail(s"Expected InvalidMoveEvent, but got $other")
-
-  test("Cannot make second draw offer when one is already pending"):
-    val engine   = new GameEngine()
-    val observer = new DrawOfferMockObserver()
-    engine.subscribe(observer)
-
-    engine.offerDraw(Color.White)
-    observer.events.clear()
-    engine.offerDraw(Color.Black)
-
-    observer.events should have length 1
-    observer.events.head match
-      case event: InvalidMoveEvent =>
-        event.reason shouldBe InvalidMoveReason.DrawOfferPending
-      case other =>
-        fail(s"Expected InvalidMoveEvent, but got $other")
-
-  test("Draw offer is cleared when game ends by resignation (accept)"):
-    val engine   = new GameEngine()
-    val observer = new DrawOfferMockObserver()
-    engine.subscribe(observer)
-
-    engine.offerDraw(Color.White)
-    observer.events.clear()
-    engine.resign(Color.Black)
-
-    // Try to accept the now-cleared draw offer
-    observer.events.clear()
-    engine.acceptDraw(Color.White)
-
-    observer.events should have length 1
-    observer.events.head match
-      case event: InvalidMoveEvent =>
-        event.reason shouldBe InvalidMoveReason.GameAlreadyOver
-      case other =>
-        fail(s"Expected InvalidMoveEvent, but got $other")
-
-  test("Draw offer is cleared when game ends by resignation (decline)"):
-    val engine   = new GameEngine()
-    val observer = new DrawOfferMockObserver()
-    engine.subscribe(observer)
-
-    engine.offerDraw(Color.White)
-    observer.events.clear()
-    engine.resign(Color.Black)
-
-    // Try to accept the now-cleared draw offer
-    observer.events.clear()
-    engine.declineDraw(Color.White)
-
-    observer.events should have length 1
-    observer.events.head match
-      case event: InvalidMoveEvent =>
-        event.reason shouldBe InvalidMoveReason.GameAlreadyOver
-      case other =>
-        fail(s"Expected InvalidMoveEvent, but got $other")
-
-private class DrawOfferMockObserver extends Observer:
-  val events = mutable.ListBuffer[GameEvent]()
-
-  override def onGameEvent(event: GameEvent): Unit =
-    events += event
@@ -3,7 +3,7 @@ package de.nowchess.chess.engine
 import de.nowchess.api.board.{Board, Color, File, PieceType, Rank, Square}
 import de.nowchess.api.game.GameContext
 import de.nowchess.api.move.{Move, MoveType, PromotionPiece}
-import de.nowchess.chess.observer.{GameEvent, InvalidMoveEvent, InvalidMoveReason, MoveRedoneEvent, Observer}
+import de.nowchess.chess.observer.{GameEvent, InvalidMoveEvent, MoveRedoneEvent, Observer}
 import de.nowchess.io.GameContextImport
 import de.nowchess.rules.RuleSet
 import de.nowchess.rules.sets.DefaultRules
@@ -50,8 +50,8 @@ class GameEngineIntegrationTest extends AnyFunSuite with Matchers:
    engine.processUserInput("e2e5")

    events.exists {
-      case InvalidMoveEvent(_, InvalidMoveReason.IllegalMove) => true
-      case _                                                  => false
+      case InvalidMoveEvent(_, reason) => reason.contains("Illegal move")
+      case _                           => false
    } shouldBe true

  test("loadGame returns Left when importer fails"):
@@ -4,16 +4,7 @@ import de.nowchess.api.board.{Board, Color, File, Piece, PieceType, Rank, Square
 import de.nowchess.api.game.{DrawReason, GameContext}
 import de.nowchess.api.move.{Move, MoveType, PromotionPiece}
 import de.nowchess.io.fen.FenParser
-import de.nowchess.chess.observer.{
-  CheckDetectedEvent,
-  CheckmateEvent,
-  DrawEvent,
-  GameEvent,
-  InvalidMoveEvent,
-  InvalidMoveReason,
-  MoveExecutedEvent,
-  Observer,
-}
+import de.nowchess.chess.observer.*
 import de.nowchess.rules.RuleSet
 import de.nowchess.rules.sets.DefaultRules
 import org.scalatest.funsuite.AnyFunSuite
@@ -39,8 +30,8 @@ class GameEnginePromotionTest extends AnyFunSuite with Matchers:
    engine.processUserInput("e7e8")

    events.exists {
-      case InvalidMoveEvent(_, InvalidMoveReason.PromotionPieceRequired) => true
-      case _                                                             => false
+      case InvalidMoveEvent(_, reason) => reason.contains("Promotion piece required")
+      case _                           => false
    } should be(true)
  }

@@ -207,5 +198,5 @@ class GameEnginePromotionTest extends AnyFunSuite with Matchers:
      case _                   => false
    } should be(true)
    val invalidEvt = events.collect { case e: InvalidMoveEvent => e }.last
-    invalidEvt.reason shouldBe InvalidMoveReason.PromotionPieceInvalid
+    invalidEvt.reason should include("Error completing promotion")
  }
@@ -1,70 +0,0 @@
-package de.nowchess.chess.engine
-
-import scala.collection.mutable
-import de.nowchess.api.board.Color
-import de.nowchess.api.game.GameResult
-import de.nowchess.chess.observer.{GameEvent, InvalidMoveEvent, InvalidMoveReason, Observer, ResignEvent}
-import org.scalatest.funsuite.AnyFunSuite
-import org.scalatest.matchers.should.Matchers
-
-class GameEngineResignTest extends AnyFunSuite with Matchers:
-
-  test("White resigns"):
-    val engine   = new GameEngine()
-    val observer = new ResignMockObserver()
-    engine.subscribe(observer)
-
-    engine.resign(Color.White)
-
-    observer.events should have length 1
-    observer.events.head match
-      case event: ResignEvent =>
-        event.resignedColor shouldBe Color.White
-        event.context.result shouldBe Some(GameResult.Win(Color.Black))
-      case other =>
-        fail(s"Expected ResignEvent, but got $other")
-
-  test("Black resigns"):
-    val engine   = new GameEngine()
-    val observer = new ResignMockObserver()
-    engine.subscribe(observer)
-
-    engine.resign(Color.Black)
-
-    observer.events should have length 1
-    observer.events.head match
-      case event: ResignEvent =>
-        event.resignedColor shouldBe Color.Black
-        event.context.result shouldBe Some(GameResult.Win(Color.White))
-      case other =>
-        fail(s"Expected ResignEvent, but got $other")
-
-  test("Cannot resign when game is already over"):
-    val engine   = new GameEngine()
-    val observer = new ResignMockObserver()
-    engine.subscribe(observer)
-
-    // End the game with checkmate
-    engine.processUserInput("f2f3")
-    engine.processUserInput("e7e5")
-    engine.processUserInput("g2g4")
-    observer.events.clear()
-    engine.processUserInput("d8h4")
-
-    // Try to resign
-    observer.events.clear()
-    engine.resign(Color.White)
-
-    // Should get InvalidMoveEvent with GameAlreadyOver reason
-    observer.events.length shouldBe 1
-    observer.events.head match
-      case event: InvalidMoveEvent =>
-        event.reason shouldBe InvalidMoveReason.GameAlreadyOver
-      case other =>
-        fail(s"Expected InvalidMoveEvent, but got $other")
-
-private class ResignMockObserver extends Observer:
-  val events = mutable.ListBuffer[GameEvent]()
-
-  override def onGameEvent(event: GameEvent): Unit =
-    events += event
@@ -1,3 +1,3 @@
 MAJOR=0
-MINOR=16
+MINOR=14
 PATCH=0
@@ -56,23 +56,3 @@
 * NCS-29 JSON - Cherry Picked ([#28](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/28)) ([dbcafd2](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/dbcafd286993e0604a6fa286c5543581a149439e))
 * NCS-30 FEN Parser using ParserCombinators ([#21](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/21)) ([b4bc72f](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/b4bc72f7e49f94d6e1bc805c68680e5fe8ef8e36))
 * NCS-31 FastParse FEN ([#22](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/22)) ([7a045d3](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/7a045d31d757bbc5aa6f4bad2664ebe8b8519cac))
-##  (2026-04-19)
-
-### Features
-
-* 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-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-29 JSON - Cherry Picked ([#28](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/28)) ([dbcafd2](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/dbcafd286993e0604a6fa286c5543581a149439e))
-* NCS-30 FEN Parser using ParserCombinators ([#21](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/21)) ([b4bc72f](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/b4bc72f7e49f94d6e1bc805c68680e5fe8ef8e36))
-* NCS-31 FastParse FEN ([#22](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/22)) ([7a045d3](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/7a045d31d757bbc5aa6f4bad2664ebe8b8519cac))
-* 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-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-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-29 JSON - Cherry Picked ([#28](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/28)) ([dbcafd2](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/dbcafd286993e0604a6fa286c5543581a149439e))
-* NCS-30 FEN Parser using ParserCombinators ([#21](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/21)) ([b4bc72f](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/b4bc72f7e49f94d6e1bc805c68680e5fe8ef8e36))
-* NCS-31 FastParse FEN ([#22](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/22)) ([7a045d3](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/7a045d31d757bbc5aa6f4bad2664ebe8b8519cac))
-* NCS-41 Bot Platform ([#33](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/33)) ([dceab08](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/dceab0875e6d15f7d3958633cf5dd5b29a851b1d))
@@ -1,3 +1,3 @@
 MAJOR=0
-MINOR=10
+MINOR=8
 PATCH=0
@@ -55,27 +55,3 @@
 ### Bug Fixes

 * NCS-32 Queenside Castle doesn't care about pieces in the way ([#23](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/23)) ([fe8e3c0](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/fe8e3c05397f433bfa34d1999e9738c82790adf7))
-##  (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-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))
-
-### Bug Fixes
-
-* NCS-32 Queenside Castle doesn't care about pieces in the way ([#23](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/23)) ([fe8e3c0](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/fe8e3c05397f433bfa34d1999e9738c82790adf7))
-##  (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-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))
-
-### Bug Fixes
-
-* NCS-32 Queenside Castle doesn't care about pieces in the way ([#23](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/23)) ([fe8e3c0](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/fe8e3c05397f433bfa34d1999e9738c82790adf7))
@@ -1,7 +1,6 @@
 plugins {
    id("scala")
    id("org.scoverage") version "8.1"
-    id("io.quarkus")
 }

 group = "de.nowchess"
@@ -26,10 +25,6 @@ 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("org.scala-lang:scala3-compiler_3") {
@@ -45,56 +40,20 @@ dependencies {

    implementation(project(":modules:api"))

-    implementation(enforcedPlatform("${quarkusPlatformGroupId}:${quarkusPlatformArtifactId}:${quarkusPlatformVersion}"))
-    implementation("io.quarkus:quarkus-rest")
-    implementation("io.quarkus:quarkus-hibernate-orm")
-    implementation("io.quarkus:quarkus-rest-client-jackson")
-    implementation("io.quarkus:quarkus-rest-client")
-    implementation("io.quarkus:quarkus-rest-jackson")
-    implementation("io.quarkus:quarkus-config-yaml")
-    implementation("io.quarkus:quarkus-smallrye-fault-tolerance")
-    implementation("io.quarkus:quarkus-smallrye-jwt")
-    implementation("io.quarkus:quarkus-smallrye-health")
-    implementation("io.quarkus:quarkus-micrometer")
-    implementation("io.quarkus:quarkus-arc")
-    implementation("com.fasterxml.jackson.module:jackson-module-scala_3:${versions["JACKSON_SCALA"]!!}")
-
    testImplementation(project(":modules:io"))
    testImplementation(platform("org.junit:junit-bom:5.13.4"))
    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.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")
-        }
-    }
-}
-
-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")
+        includeEngines("scalatest")
        testLogging {
-            events("passed", "skipped", "failed")
+            events("skipped", "failed")
        }
    }
    finalizedBy(tasks.reportScoverage)
@@ -102,7 +61,3 @@ tasks.test {
 tasks.reportScoverage {
    dependsOn(tasks.test)
 }
-
-tasks.jar {
-    duplicatesStrategy = DuplicatesStrategy.EXCLUDE
-}
@@ -1,100 +0,0 @@
-####
-# This Dockerfile is used in order to build a container that runs the Quarkus application in JVM mode
-#
-# Before building the container image run:
-#
-# ./gradlew build
-#
-# Then, build the image with:
-#
-# docker build -f src/main/docker/Dockerfile.jvm -t quarkus/backcore-jvm .
-#
-# Then run the container using:
-#
-# docker run -i --rm -p 8080:8080 quarkus/backcore-jvm
-#
-# If you want to include the debug port into your docker image
-# you will have to expose the debug port (default 5005 being the default) like this :  EXPOSE 8080 5005.
-# Additionally you will have to set -e JAVA_DEBUG=true and -e JAVA_DEBUG_PORT=*:5005
-# when running the container
-#
-# Then run the container using :
-#
-# docker run -i --rm -p 8080:8080 quarkus/backcore-jvm
-#
-# This image uses the `run-java.sh` script to run the application.
-# This scripts computes the command line to execute your Java application, and
-# includes memory/GC tuning.
-# You can configure the behavior using the following environment properties:
-# - JAVA_OPTS: JVM options passed to the `java` command (example: "-verbose:class") - Be aware that this will override
-# the default JVM options, use `JAVA_OPTS_APPEND` to append options
-# - JAVA_OPTS_APPEND: User specified Java options to be appended to generated options
-#   in JAVA_OPTS (example: "-Dsome.property=foo")
-# - JAVA_MAX_MEM_RATIO: Is used when no `-Xmx` option is given in JAVA_OPTS. This is
-#   used to calculate a default maximal heap memory based on a containers restriction.
-#   If used in a container without any memory constraints for the container then this
-#   option has no effect. If there is a memory constraint then `-Xmx` is set to a ratio
-#   of the container available memory as set here. The default is `50` which means 50%
-#   of the available memory is used as an upper boundary. You can skip this mechanism by
-#   setting this value to `0` in which case no `-Xmx` option is added.
-# - JAVA_INITIAL_MEM_RATIO: Is used when no `-Xms` option is given in JAVA_OPTS. This
-#   is used to calculate a default initial heap memory based on the maximum heap memory.
-#   If used in a container without any memory constraints for the container then this
-#   option has no effect. If there is a memory constraint then `-Xms` is set to a ratio
-#   of the `-Xmx` memory as set here. The default is `25` which means 25% of the `-Xmx`
-#   is used as the initial heap size. You can skip this mechanism by setting this value
-#   to `0` in which case no `-Xms` option is added (example: "25")
-# - JAVA_MAX_INITIAL_MEM: Is used when no `-Xms` option is given in JAVA_OPTS.
-#   This is used to calculate the maximum value of the initial heap memory. If used in
-#   a container without any memory constraints for the container then this option has
-#   no effect. If there is a memory constraint then `-Xms` is limited to the value set
-#   here. The default is 4096MB which means the calculated value of `-Xms` never will
-#   be greater than 4096MB. The value of this variable is expressed in MB (example: "4096")
-# - JAVA_DIAGNOSTICS: Set this to get some diagnostics information to standard output
-#   when things are happening. This option, if set to true, will set
-#  `-XX:+UnlockDiagnosticVMOptions`. Disabled by default (example: "true").
-# - JAVA_DEBUG: If set remote debugging will be switched on. Disabled by default (example:
-#    true").
-# - JAVA_DEBUG_PORT: Port used for remote debugging. Defaults to 5005 (example: "8787").
-# - CONTAINER_CORE_LIMIT: A calculated core limit as described in
-#   https://www.kernel.org/doc/Documentation/scheduler/sched-bwc.txt. (example: "2")
-# - CONTAINER_MAX_MEMORY: Memory limit given to the container (example: "1024").
-# - GC_MIN_HEAP_FREE_RATIO: Minimum percentage of heap free after GC to avoid expansion.
-#   (example: "20")
-# - GC_MAX_HEAP_FREE_RATIO: Maximum percentage of heap free after GC to avoid shrinking.
-#   (example: "40")
-# - GC_TIME_RATIO: Specifies the ratio of the time spent outside the garbage collection.
-#   (example: "4")
-# - GC_ADAPTIVE_SIZE_POLICY_WEIGHT: The weighting given to the current GC time versus
-#   previous GC times. (example: "90")
-# - GC_METASPACE_SIZE: The initial metaspace size. (example: "20")
-# - GC_MAX_METASPACE_SIZE: The maximum metaspace size. (example: "100")
-# - GC_CONTAINER_OPTIONS: Specify Java GC to use. The value of this variable should
-#   contain the necessary JRE command-line options to specify the required GC, which
-#   will override the default of `-XX:+UseParallelGC` (example: -XX:+UseG1GC).
-# - HTTPS_PROXY: The location of the https proxy. (example: "myuser@127.0.0.1:8080")
-# - HTTP_PROXY: The location of the http proxy. (example: "myuser@127.0.0.1:8080")
-# - NO_PROXY: A comma separated lists of hosts, IP addresses or domains that can be
-#   accessed directly. (example: "foo.example.com,bar.example.com")
-#
-# You can find more information about the UBI base runtime images and their configuration here:
-# https://rh-openjdk.github.io/redhat-openjdk-containers/
-###
-FROM registry.access.redhat.com/ubi9/openjdk-21-runtime:1.24
-
-ENV LANGUAGE='en_US:en'
-
-
-# We make four distinct layers so if there are application changes the library layers can be re-used
-COPY --chown=185 build/quarkus-app/lib/ /deployments/lib/
-COPY --chown=185 build/quarkus-app/*.jar /deployments/
-COPY --chown=185 build/quarkus-app/app/ /deployments/app/
-COPY --chown=185 build/quarkus-app/quarkus/ /deployments/quarkus/
-
-EXPOSE 8080
-USER 185
-ENV JAVA_OPTS_APPEND="-Dquarkus.http.host=0.0.0.0 -Djava.util.logging.manager=org.jboss.logmanager.LogManager"
-ENV JAVA_APP_JAR="/deployments/quarkus-run.jar"
-
-ENTRYPOINT [ "/opt/jboss/container/java/run/run-java.sh" ]
-
@@ -1,96 +0,0 @@
-####
-# This Dockerfile is used in order to build a container that runs the Quarkus application in JVM mode
-#
-# Before building the container image run:
-#
-# ./gradlew build -Dquarkus.package.jar.type=legacy-jar
-#
-# Then, build the image with:
-#
-# docker build -f src/main/docker/Dockerfile.legacy-jar -t quarkus/backcore-legacy-jar .
-#
-# Then run the container using:
-#
-# docker run -i --rm -p 8080:8080 quarkus/backcore-legacy-jar
-#
-# If you want to include the debug port into your docker image
-# you will have to expose the debug port (default 5005 being the default) like this :  EXPOSE 8080 5005.
-# Additionally you will have to set -e JAVA_DEBUG=true and -e JAVA_DEBUG_PORT=*:5005
-# when running the container
-#
-# Then run the container using :
-#
-# docker run -i --rm -p 8080:8080 quarkus/backcore-legacy-jar
-#
-# This image uses the `run-java.sh` script to run the application.
-# This scripts computes the command line to execute your Java application, and
-# includes memory/GC tuning.
-# You can configure the behavior using the following environment properties:
-# - JAVA_OPTS: JVM options passed to the `java` command (example: "-verbose:class") - Be aware that this will override
-# the default JVM options, use `JAVA_OPTS_APPEND` to append options
-# - JAVA_OPTS_APPEND: User specified Java options to be appended to generated options
-#   in JAVA_OPTS (example: "-Dsome.property=foo")
-# - JAVA_MAX_MEM_RATIO: Is used when no `-Xmx` option is given in JAVA_OPTS. This is
-#   used to calculate a default maximal heap memory based on a containers restriction.
-#   If used in a container without any memory constraints for the container then this
-#   option has no effect. If there is a memory constraint then `-Xmx` is set to a ratio
-#   of the container available memory as set here. The default is `50` which means 50%
-#   of the available memory is used as an upper boundary. You can skip this mechanism by
-#   setting this value to `0` in which case no `-Xmx` option is added.
-# - JAVA_INITIAL_MEM_RATIO: Is used when no `-Xms` option is given in JAVA_OPTS. This
-#   is used to calculate a default initial heap memory based on the maximum heap memory.
-#   If used in a container without any memory constraints for the container then this
-#   option has no effect. If there is a memory constraint then `-Xms` is set to a ratio
-#   of the `-Xmx` memory as set here. The default is `25` which means 25% of the `-Xmx`
-#   is used as the initial heap size. You can skip this mechanism by setting this value
-#   to `0` in which case no `-Xms` option is added (example: "25")
-# - JAVA_MAX_INITIAL_MEM: Is used when no `-Xms` option is given in JAVA_OPTS.
-#   This is used to calculate the maximum value of the initial heap memory. If used in
-#   a container without any memory constraints for the container then this option has
-#   no effect. If there is a memory constraint then `-Xms` is limited to the value set
-#   here. The default is 4096MB which means the calculated value of `-Xms` never will
-#   be greater than 4096MB. The value of this variable is expressed in MB (example: "4096")
-# - JAVA_DIAGNOSTICS: Set this to get some diagnostics information to standard output
-#   when things are happening. This option, if set to true, will set
-#  `-XX:+UnlockDiagnosticVMOptions`. Disabled by default (example: "true").
-# - JAVA_DEBUG: If set remote debugging will be switched on. Disabled by default (example:
-#    true").
-# - JAVA_DEBUG_PORT: Port used for remote debugging. Defaults to 5005 (example: "8787").
-# - CONTAINER_CORE_LIMIT: A calculated core limit as described in
-#   https://www.kernel.org/doc/Documentation/scheduler/sched-bwc.txt. (example: "2")
-# - CONTAINER_MAX_MEMORY: Memory limit given to the container (example: "1024").
-# - GC_MIN_HEAP_FREE_RATIO: Minimum percentage of heap free after GC to avoid expansion.
-#   (example: "20")
-# - GC_MAX_HEAP_FREE_RATIO: Maximum percentage of heap free after GC to avoid shrinking.
-#   (example: "40")
-# - GC_TIME_RATIO: Specifies the ratio of the time spent outside the garbage collection.
-#   (example: "4")
-# - GC_ADAPTIVE_SIZE_POLICY_WEIGHT: The weighting given to the current GC time versus
-#   previous GC times. (example: "90")
-# - GC_METASPACE_SIZE: The initial metaspace size. (example: "20")
-# - GC_MAX_METASPACE_SIZE: The maximum metaspace size. (example: "100")
-# - GC_CONTAINER_OPTIONS: Specify Java GC to use. The value of this variable should
-#   contain the necessary JRE command-line options to specify the required GC, which
-#   will override the default of `-XX:+UseParallelGC` (example: -XX:+UseG1GC).
-# - HTTPS_PROXY: The location of the https proxy. (example: "myuser@127.0.0.1:8080")
-# - HTTP_PROXY: The location of the http proxy. (example: "myuser@127.0.0.1:8080")
-# - NO_PROXY: A comma separated lists of hosts, IP addresses or domains that can be
-#   accessed directly. (example: "foo.example.com,bar.example.com")
-#
-# You can find more information about the UBI base runtime images and their configuration here:
-# https://rh-openjdk.github.io/redhat-openjdk-containers/
-###
-FROM registry.access.redhat.com/ubi9/openjdk-21-runtime:1.24
-
-ENV LANGUAGE='en_US:en'
-
-
-COPY build/lib/* /deployments/lib/
-COPY build/*-runner.jar /deployments/quarkus-run.jar
-
-EXPOSE 8080
-USER 185
-ENV JAVA_OPTS_APPEND="-Dquarkus.http.host=0.0.0.0 -Djava.util.logging.manager=org.jboss.logmanager.LogManager"
-ENV JAVA_APP_JAR="/deployments/quarkus-run.jar"
-
-ENTRYPOINT [ "/opt/jboss/container/java/run/run-java.sh" ]
@@ -1,29 +0,0 @@
-####
-# This Dockerfile is used in order to build a container that runs the Quarkus application in native (no JVM) mode.
-#
-# Before building the container image run:
-#
-# ./gradlew build -Dquarkus.native.enabled=true
-#
-# Then, build the image with:
-#
-# docker build -f src/main/docker/Dockerfile.native -t quarkus/backcore .
-#
-# Then run the container using:
-#
-# docker run -i --rm -p 8080:8080 quarkus/backcore
-#
-# The ` registry.access.redhat.com/ubi9/ubi-minimal:9.7` base image is based on UBI 9.
-# To use UBI 8, switch to `quay.io/ubi8/ubi-minimal:8.10`.
-###
-FROM registry.access.redhat.com/ubi9/ubi-minimal:9.7
-WORKDIR /work/
-RUN chown 1001 /work \
-    && chmod "g+rwX" /work \
-    && chown 1001:root /work
-COPY --chown=1001:root --chmod=0755 build/*-runner /work/application
-
-EXPOSE 8080
-USER 1001
-
-ENTRYPOINT ["./application", "-Dquarkus.http.host=0.0.0.0"]
@@ -1,32 +0,0 @@
-####
-# This Dockerfile is used in order to build a container that runs the Quarkus application in native (no JVM) mode.
-# It uses a micro base image, tuned for Quarkus native executables.
-# It reduces the size of the resulting container image.
-# Check https://quarkus.io/guides/quarkus-runtime-base-image for further information about this image.
-#
-# Before building the container image run:
-#
-# ./gradlew build -Dquarkus.native.enabled=true
-#
-# Then, build the image with:
-#
-# docker build -f src/main/docker/Dockerfile.native-micro -t quarkus/backcore .
-#
-# Then run the container using:
-#
-# docker run -i --rm -p 8080:8080 quarkus/backcore
-#
-# The `quay.io/quarkus/ubi9-quarkus-micro-image:2.0` base image is based on UBI 9.
-# To use UBI 8, switch to `quay.io/quarkus/quarkus-micro-image:2.0`.
-###
-FROM quay.io/quarkus/ubi9-quarkus-micro-image:2.0
-WORKDIR /work/
-RUN chown 1001 /work \
-    && chmod "g+rwX" /work \
-    && chown 1001:root /work
-COPY --chown=1001:root --chmod=0755 build/*-runner /work/application
-
-EXPOSE 8080
-USER 1001
-
-ENTRYPOINT ["./application", "-Dquarkus.http.host=0.0.0.0"]
@@ -1,5 +0,0 @@
-quarkus:
-  http:
-    port: 8081
-  application:
-    name: rule-service
@@ -1,11 +0,0 @@
-package de.nowchess.rules.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)
@@ -1,128 +0,0 @@
-package de.nowchess.rules.dto
-
-import de.nowchess.api.board.{Board, CastlingRights, Color, Piece, PieceType, Square}
-import de.nowchess.api.game.GameContext
-import de.nowchess.api.move.{Move, MoveType, PromotionPiece}
-
-object DtoMapper:
-
-  def toColor(s: String): Either[String, Color] = s match
-    case "White" => Right(Color.White)
-    case "Black" => Right(Color.Black)
-    case other   => Left(s"Unknown color: $other")
-
-  def toPieceType(s: String): Either[String, PieceType] = s match
-    case "Pawn"   => Right(PieceType.Pawn)
-    case "Knight" => Right(PieceType.Knight)
-    case "Bishop" => Right(PieceType.Bishop)
-    case "Rook"   => Right(PieceType.Rook)
-    case "Queen"  => Right(PieceType.Queen)
-    case "King"   => Right(PieceType.King)
-    case other    => Left(s"Unknown piece type: $other")
-
-  def toSquare(s: String): Either[String, Square] =
-    Square.fromAlgebraic(s).toRight(s"Invalid square: $s")
-
-  def toMoveType(dto: MoveDto): Either[String, MoveType] = dto.moveType match
-    case "normal"          => Right(MoveType.Normal(isCapture = false))
-    case "capture"         => Right(MoveType.Normal(isCapture = true))
-    case "castleKingside"  => Right(MoveType.CastleKingside)
-    case "castleQueenside" => Right(MoveType.CastleQueenside)
-    case "enPassant"       => Right(MoveType.EnPassant)
-    case "promotion"       =>
-      dto.promotionPiece.toRight("Missing promotion piece").flatMap(toPromotionPiece).map(MoveType.Promotion(_))
-    case other => Left(s"Unknown move type: $other")
-
-  def toMove(dto: MoveDto): Either[String, Move] =
-    for
-      from     <- toSquare(dto.from)
-      to       <- toSquare(dto.to)
-      moveType <- toMoveType(dto)
-    yield Move(from, to, moveType)
-
-  def toBoard(pieces: List[PieceOnSquareDto]): Either[String, Board] =
-    sequenceList(pieces.map(toPieceOnSquare)).map(entries => Board(entries.toMap))
-
-  def toGameContext(dto: GameContextDto): Either[String, GameContext] =
-    for
-      board        <- toBoard(dto.board)
-      turn         <- toColor(dto.turn)
-      epSquare     <- sequenceOpt(dto.enPassantSquare.map(toSquare))
-      moves        <- sequenceList(dto.moves.map(toMove))
-      initialBoard <- toBoard(dto.initialBoard)
-    yield GameContext(
-      board           = board,
-      turn            = turn,
-      castlingRights  = toCastlingRights(dto.castlingRights),
-      enPassantSquare = epSquare,
-      halfMoveClock   = dto.halfMoveClock,
-      moves           = moves,
-      initialBoard    = initialBoard,
-    )
-
-  def fromMove(move: Move): MoveDto =
-    val (moveType, promotionPiece) = fromMoveType(move.moveType)
-    MoveDto(move.from.toString, move.to.toString, moveType, promotionPiece)
-
-  def fromBoard(board: Board): List[PieceOnSquareDto] =
-    board.pieces.toList.map { case (sq, p) =>
-      PieceOnSquareDto(sq.toString, p.color.label, p.pieceType.label)
-    }
-
-  def fromGameContext(ctx: GameContext): GameContextDto =
-    GameContextDto(
-      board           = fromBoard(ctx.board),
-      turn            = ctx.turn.label,
-      castlingRights  = fromCastlingRights(ctx.castlingRights),
-      enPassantSquare = ctx.enPassantSquare.map(_.toString),
-      halfMoveClock   = ctx.halfMoveClock,
-      moves           = ctx.moves.map(fromMove),
-      initialBoard    = fromBoard(ctx.initialBoard),
-    )
-
-  private def toPromotionPiece(s: String): Either[String, PromotionPiece] = s match
-    case "Queen"  => Right(PromotionPiece.Queen)
-    case "Rook"   => Right(PromotionPiece.Rook)
-    case "Bishop" => Right(PromotionPiece.Bishop)
-    case "Knight" => Right(PromotionPiece.Knight)
-    case other    => Left(s"Unknown promotion piece: $other")
-
-  private def fromMoveType(mt: MoveType): (String, Option[String]) = mt match
-    case MoveType.Normal(false)   => ("normal", None)
-    case MoveType.Normal(true)    => ("capture", None)
-    case MoveType.CastleKingside  => ("castleKingside", None)
-    case MoveType.CastleQueenside => ("castleQueenside", None)
-    case MoveType.EnPassant       => ("enPassant", None)
-    case MoveType.Promotion(pp)   => ("promotion", Some(fromPromotionPiece(pp)))
-
-  private def fromPromotionPiece(pp: PromotionPiece): String = pp match
-    case PromotionPiece.Queen  => "Queen"
-    case PromotionPiece.Rook   => "Rook"
-    case PromotionPiece.Bishop => "Bishop"
-    case PromotionPiece.Knight => "Knight"
-
-  private def toCastlingRights(dto: CastlingRightsDto): CastlingRights =
-    CastlingRights(dto.whiteKingSide, dto.whiteQueenSide, dto.blackKingSide, dto.blackQueenSide)
-
-  private def fromCastlingRights(cr: CastlingRights): CastlingRightsDto =
-    CastlingRightsDto(cr.whiteKingSide, cr.whiteQueenSide, cr.blackKingSide, cr.blackQueenSide)
-
-  private def toPieceOnSquare(dto: PieceOnSquareDto): Either[String, (Square, Piece)] =
-    for
-      sq        <- toSquare(dto.square)
-      color     <- toColor(dto.color)
-      pieceType <- toPieceType(dto.pieceType)
-    yield sq -> Piece(color, pieceType)
-
-  private def sequenceList[R](list: List[Either[String, R]]): Either[String, List[R]] =
-    list.foldLeft[Either[String, List[R]]](Right(List.empty)) {
-      case (Right(acc), Right(v)) => Right(acc :+ v)
-      case (Left(e), _)           => Left(e)
-      case (_, Left(e))           => Left(e)
-    }
-
-  private def sequenceOpt[R](opt: Option[Either[String, R]]): Either[String, Option[R]] =
-    opt match
-      case None           => Right(None)
-      case Some(Right(v)) => Right(Some(v))
-      case Some(Left(e))  => Left(e)
@@ -1,37 +0,0 @@
-package de.nowchess.rules.dto
-
-case class PieceOnSquareDto(square: String, color: String, pieceType: String)
-
-case class CastlingRightsDto(
-    whiteKingSide: Boolean,
-    whiteQueenSide: Boolean,
-    blackKingSide: Boolean,
-    blackQueenSide: Boolean,
-)
-
-case class MoveDto(
-    from: String,
-    to: String,
-    moveType: String,
-    promotionPiece: Option[String],
-)
-
-case class GameContextDto(
-    board: List[PieceOnSquareDto],
-    turn: String,
-    castlingRights: CastlingRightsDto,
-    enPassantSquare: Option[String],
-    halfMoveClock: Int,
-    moves: List[MoveDto],
-    initialBoard: List[PieceOnSquareDto],
-)
-
-case class ContextRequest(context: GameContextDto)
-
-case class ContextSquareRequest(context: GameContextDto, square: String)
-
-case class ContextMoveRequest(context: GameContextDto, move: MoveDto)
-
-case class MovesResponse(moves: List[MoveDto])
-
-case class BooleanResponse(result: Boolean)
@@ -1,94 +0,0 @@
-package de.nowchess.rules.resource
-
-import de.nowchess.rules.dto.*
-import de.nowchess.rules.sets.DefaultRules
-import jakarta.enterprise.context.ApplicationScoped
-import jakarta.ws.rs.*
-import jakarta.ws.rs.core.MediaType
-
-@Path("/api/rules")
-@ApplicationScoped
-class RuleSetResource:
-  private val rules = DefaultRules
-
-  // scalafix:off DisableSyntax.throw
-  private def parse[T](e: Either[String, T]): T = e match
-    case Right(v)  => v
-    case Left(msg) => throw BadRequestException(msg)
-  // scalafix:on DisableSyntax.throw
-
-  @POST
-  @Path("/candidate-moves")
-  @Consumes(Array(MediaType.APPLICATION_JSON))
-  @Produces(Array(MediaType.APPLICATION_JSON))
-  def candidateMoves(req: ContextSquareRequest): MovesResponse =
-    val ctx = parse(DtoMapper.toGameContext(req.context))
-    val sq  = parse(DtoMapper.toSquare(req.square))
-    MovesResponse(rules.candidateMoves(ctx)(sq).map(DtoMapper.fromMove))
-
-  @POST
-  @Path("/legal-moves")
-  @Consumes(Array(MediaType.APPLICATION_JSON))
-  @Produces(Array(MediaType.APPLICATION_JSON))
-  def legalMoves(req: ContextSquareRequest): MovesResponse =
-    val ctx = parse(DtoMapper.toGameContext(req.context))
-    val sq  = parse(DtoMapper.toSquare(req.square))
-    MovesResponse(rules.legalMoves(ctx)(sq).map(DtoMapper.fromMove))
-
-  @POST
-  @Path("/all-legal-moves")
-  @Consumes(Array(MediaType.APPLICATION_JSON))
-  @Produces(Array(MediaType.APPLICATION_JSON))
-  def allLegalMoves(req: ContextRequest): MovesResponse =
-    MovesResponse(rules.allLegalMoves(parse(DtoMapper.toGameContext(req.context))).map(DtoMapper.fromMove))
-
-  @POST
-  @Path("/is-check")
-  @Consumes(Array(MediaType.APPLICATION_JSON))
-  @Produces(Array(MediaType.APPLICATION_JSON))
-  def isCheck(req: ContextRequest): BooleanResponse =
-    BooleanResponse(rules.isCheck(parse(DtoMapper.toGameContext(req.context))))
-
-  @POST
-  @Path("/is-checkmate")
-  @Consumes(Array(MediaType.APPLICATION_JSON))
-  @Produces(Array(MediaType.APPLICATION_JSON))
-  def isCheckmate(req: ContextRequest): BooleanResponse =
-    BooleanResponse(rules.isCheckmate(parse(DtoMapper.toGameContext(req.context))))
-
-  @POST
-  @Path("/is-stalemate")
-  @Consumes(Array(MediaType.APPLICATION_JSON))
-  @Produces(Array(MediaType.APPLICATION_JSON))
-  def isStalemate(req: ContextRequest): BooleanResponse =
-    BooleanResponse(rules.isStalemate(parse(DtoMapper.toGameContext(req.context))))
-
-  @POST
-  @Path("/is-insufficient-material")
-  @Consumes(Array(MediaType.APPLICATION_JSON))
-  @Produces(Array(MediaType.APPLICATION_JSON))
-  def isInsufficientMaterial(req: ContextRequest): BooleanResponse =
-    BooleanResponse(rules.isInsufficientMaterial(parse(DtoMapper.toGameContext(req.context))))
-
-  @POST
-  @Path("/is-fifty-move-rule")
-  @Consumes(Array(MediaType.APPLICATION_JSON))
-  @Produces(Array(MediaType.APPLICATION_JSON))
-  def isFiftyMoveRule(req: ContextRequest): BooleanResponse =
-    BooleanResponse(rules.isFiftyMoveRule(parse(DtoMapper.toGameContext(req.context))))
-
-  @POST
-  @Path("/is-threefold-repetition")
-  @Consumes(Array(MediaType.APPLICATION_JSON))
-  @Produces(Array(MediaType.APPLICATION_JSON))
-  def isThreefoldRepetition(req: ContextRequest): BooleanResponse =
-    BooleanResponse(rules.isThreefoldRepetition(parse(DtoMapper.toGameContext(req.context))))
-
-  @POST
-  @Path("/apply-move")
-  @Consumes(Array(MediaType.APPLICATION_JSON))
-  @Produces(Array(MediaType.APPLICATION_JSON))
-  def applyMove(req: ContextMoveRequest): GameContextDto =
-    val ctx  = parse(DtoMapper.toGameContext(req.context))
-    val move = parse(DtoMapper.toMove(req.move))
-    DtoMapper.fromGameContext(rules.applyMove(ctx)(move))
@@ -1,168 +0,0 @@
-package de.nowchess.rules.dto
-
-import de.nowchess.api.board.{Color, File, Piece, PieceType, Rank, Square}
-import de.nowchess.api.game.GameContext
-import de.nowchess.api.move.{Move, MoveType, PromotionPiece}
-import org.scalatest.funsuite.AnyFunSuite
-import org.scalatest.matchers.should.Matchers
-
-class DtoMapperTest extends AnyFunSuite with Matchers:
-
-  // ── toColor ────────────────────────────────────────────────────────
-
-  test("toColor converts White"):
-    DtoMapper.toColor("White") shouldBe Right(Color.White)
-
-  test("toColor converts Black"):
-    DtoMapper.toColor("Black") shouldBe Right(Color.Black)
-
-  test("toColor rejects unknown"):
-    DtoMapper.toColor("Red") shouldBe a[Left[?, ?]]
-
-  // ── toPieceType ────────────────────────────────────────────────────
-
-  test("toPieceType converts all piece types"):
-    DtoMapper.toPieceType("Pawn") shouldBe Right(PieceType.Pawn)
-    DtoMapper.toPieceType("Knight") shouldBe Right(PieceType.Knight)
-    DtoMapper.toPieceType("Bishop") shouldBe Right(PieceType.Bishop)
-    DtoMapper.toPieceType("Rook") shouldBe Right(PieceType.Rook)
-    DtoMapper.toPieceType("Queen") shouldBe Right(PieceType.Queen)
-    DtoMapper.toPieceType("King") shouldBe Right(PieceType.King)
-
-  test("toPieceType rejects unknown"):
-    DtoMapper.toPieceType("Dragon") shouldBe a[Left[?, ?]]
-
-  // ── toSquare ───────────────────────────────────────────────────────
-
-  test("toSquare converts valid algebraic"):
-    DtoMapper.toSquare("e4") shouldBe Right(Square(File.E, Rank.R4))
-
-  test("toSquare rejects invalid"):
-    DtoMapper.toSquare("z9") shouldBe a[Left[?, ?]]
-
-  // ── toMoveType ────────────────────────────────────────────────────
-
-  test("toMoveType converts normal non-capture"):
-    DtoMapper.toMoveType(MoveDto("e2", "e4", "normal", None)) shouldBe Right(MoveType.Normal(false))
-
-  test("toMoveType converts capture"):
-    DtoMapper.toMoveType(MoveDto("e2", "d3", "capture", None)) shouldBe Right(MoveType.Normal(true))
-
-  test("toMoveType converts castleKingside"):
-    DtoMapper.toMoveType(MoveDto("e1", "g1", "castleKingside", None)) shouldBe Right(MoveType.CastleKingside)
-
-  test("toMoveType converts castleQueenside"):
-    DtoMapper.toMoveType(MoveDto("e1", "c1", "castleQueenside", None)) shouldBe Right(MoveType.CastleQueenside)
-
-  test("toMoveType converts enPassant"):
-    DtoMapper.toMoveType(MoveDto("e5", "d6", "enPassant", None)) shouldBe Right(MoveType.EnPassant)
-
-  test("toMoveType converts all promotion pieces"):
-    DtoMapper.toMoveType(MoveDto("e7", "e8", "promotion", Some("Queen"))) shouldBe Right(
-      MoveType.Promotion(PromotionPiece.Queen),
-    )
-    DtoMapper.toMoveType(MoveDto("e7", "e8", "promotion", Some("Rook"))) shouldBe Right(
-      MoveType.Promotion(PromotionPiece.Rook),
-    )
-    DtoMapper.toMoveType(MoveDto("e7", "e8", "promotion", Some("Bishop"))) shouldBe Right(
-      MoveType.Promotion(PromotionPiece.Bishop),
-    )
-    DtoMapper.toMoveType(MoveDto("e7", "e8", "promotion", Some("Knight"))) shouldBe Right(
-      MoveType.Promotion(PromotionPiece.Knight),
-    )
-
-  test("toMoveType rejects promotion without piece"):
-    DtoMapper.toMoveType(MoveDto("e7", "e8", "promotion", None)) shouldBe a[Left[?, ?]]
-
-  test("toMoveType rejects promotion with unknown piece"):
-    DtoMapper.toMoveType(MoveDto("e7", "e8", "promotion", Some("Pawn"))) shouldBe a[Left[?, ?]]
-
-  test("toMoveType rejects unknown type"):
-    DtoMapper.toMoveType(MoveDto("e2", "e4", "unknown", None)) shouldBe a[Left[?, ?]]
-
-  // ── toBoard ───────────────────────────────────────────────────────
-
-  test("toBoard builds valid board"):
-    val pieces = List(
-      PieceOnSquareDto("e1", "White", "King"),
-      PieceOnSquareDto("e8", "Black", "King"),
-    )
-    val result = DtoMapper.toBoard(pieces)
-    result.isRight shouldBe true
-    result.map(_.pieceAt(Square(File.E, Rank.R1))) shouldBe Right(Some(Piece(Color.White, PieceType.King)))
-
-  test("toBoard rejects invalid square"):
-    DtoMapper.toBoard(List(PieceOnSquareDto("z9", "White", "King"))) shouldBe a[Left[?, ?]]
-
-  test("toBoard rejects invalid color"):
-    DtoMapper.toBoard(List(PieceOnSquareDto("e1", "Red", "King"))) shouldBe a[Left[?, ?]]
-
-  test("toBoard rejects invalid piece type"):
-    DtoMapper.toBoard(List(PieceOnSquareDto("e1", "White", "Dragon"))) shouldBe a[Left[?, ?]]
-
-  test("toBoard with multiple invalid pieces covers all sequenceList branches"):
-    val pieces = List(
-      PieceOnSquareDto("z9", "White", "King"),
-      PieceOnSquareDto("z8", "White", "Queen"),
-    )
-    DtoMapper.toBoard(pieces) shouldBe a[Left[?, ?]]
-
-  // ── toGameContext ─────────────────────────────────────────────────
-
-  test("toGameContext round-trips initial position"):
-    val ctx = GameContext.initial
-    val dto = DtoMapper.fromGameContext(ctx)
-    DtoMapper.toGameContext(dto) shouldBe Right(ctx)
-
-  test("toGameContext rejects invalid turn"):
-    val dto = DtoMapper.fromGameContext(GameContext.initial).copy(turn = "Red")
-    DtoMapper.toGameContext(dto) shouldBe a[Left[?, ?]]
-
-  test("toGameContext rejects invalid en passant square"):
-    val dto = DtoMapper.fromGameContext(GameContext.initial).copy(enPassantSquare = Some("z9"))
-    DtoMapper.toGameContext(dto) shouldBe a[Left[?, ?]]
-
-  test("toGameContext rejects invalid initial board"):
-    val badBoard = List(PieceOnSquareDto("z9", "White", "King"))
-    val dto      = DtoMapper.fromGameContext(GameContext.initial).copy(initialBoard = badBoard)
-    DtoMapper.toGameContext(dto) shouldBe a[Left[?, ?]]
-
-  test("toGameContext rejects invalid move"):
-    val badMove = MoveDto("z9", "e4", "normal", None)
-    val dto     = DtoMapper.fromGameContext(GameContext.initial).copy(moves = List(badMove))
-    DtoMapper.toGameContext(dto) shouldBe a[Left[?, ?]]
-
-  // ── fromGameContext ───────────────────────────────────────────────
-
-  test("fromGameContext includes en passant square when present"):
-    val ctx = GameContext.initial.copy(enPassantSquare = Some(Square(File.E, Rank.R3)))
-    DtoMapper.fromGameContext(ctx).enPassantSquare shouldBe Some("e3")
-
-  // ── fromMove ──────────────────────────────────────────────────────
-
-  test("fromMove converts all move types"):
-    DtoMapper.fromMove(Move(Square(File.E, Rank.R2), Square(File.E, Rank.R4))).moveType shouldBe "normal"
-    DtoMapper
-      .fromMove(Move(Square(File.E, Rank.R2), Square(File.D, Rank.R3), MoveType.Normal(true)))
-      .moveType shouldBe "capture"
-    DtoMapper
-      .fromMove(Move(Square(File.E, Rank.R1), Square(File.G, Rank.R1), MoveType.CastleKingside))
-      .moveType shouldBe "castleKingside"
-    DtoMapper
-      .fromMove(Move(Square(File.E, Rank.R1), Square(File.C, Rank.R1), MoveType.CastleQueenside))
-      .moveType shouldBe "castleQueenside"
-    DtoMapper
-      .fromMove(Move(Square(File.E, Rank.R5), Square(File.D, Rank.R6), MoveType.EnPassant))
-      .moveType shouldBe "enPassant"
-    DtoMapper
-      .fromMove(Move(Square(File.E, Rank.R7), Square(File.E, Rank.R8), MoveType.Promotion(PromotionPiece.Queen)))
-      .promotionPiece shouldBe Some("Queen")
-    DtoMapper
-      .fromMove(Move(Square(File.E, Rank.R7), Square(File.E, Rank.R8), MoveType.Promotion(PromotionPiece.Rook)))
-      .promotionPiece shouldBe Some("Rook")
-    DtoMapper
-      .fromMove(Move(Square(File.E, Rank.R7), Square(File.E, Rank.R8), MoveType.Promotion(PromotionPiece.Bishop)))
-      .promotionPiece shouldBe Some("Bishop")
-    DtoMapper
-      .fromMove(Move(Square(File.E, Rank.R7), Square(File.E, Rank.R8), MoveType.Promotion(PromotionPiece.Knight)))
-      .promotionPiece shouldBe Some("Knight")
@@ -1,294 +0,0 @@
-package de.nowchess.rules.resource
-
-import com.fasterxml.jackson.databind.ObjectMapper
-import com.fasterxml.jackson.module.scala.DefaultScalaModule
-import de.nowchess.api.board.{Board, CastlingRights, Color, File, Piece, PieceType, Rank, Square}
-import de.nowchess.api.game.GameContext
-import de.nowchess.api.move.Move
-import de.nowchess.rules.dto.{ContextMoveRequest, ContextRequest, ContextSquareRequest, DtoMapper}
-import de.nowchess.rules.sets.DefaultRules
-import io.quarkus.test.junit.QuarkusTest
-import io.restassured.RestAssured
-import io.restassured.http.ContentType
-import org.hamcrest.Matchers.*
-import org.junit.jupiter.api.Test
-
-@QuarkusTest
-class RuleSetResourceTest:
-
-  private val mapper = new ObjectMapper().registerModule(DefaultScalaModule)
-  private val rules  = DefaultRules
-
-  private def request() = RestAssured.`given`()
-
-  private def toJson(value: AnyRef): String = mapper.writeValueAsString(value)
-
-  private def contextBody(ctx: GameContext): String =
-    toJson(ContextRequest(DtoMapper.fromGameContext(ctx)))
-
-  private def contextSquareBody(ctx: GameContext, square: String): String =
-    toJson(ContextSquareRequest(DtoMapper.fromGameContext(ctx), square))
-
-  private def contextMoveBody(ctx: GameContext, move: Move): String =
-    toJson(ContextMoveRequest(DtoMapper.fromGameContext(ctx), DtoMapper.fromMove(move)))
-
-  // ── all-legal-moves ───────────────────────────────────────────────
-
-  @Test
-  def allLegalMoves_initialPositionHas20Moves(): Unit =
-    request()
-      .contentType(ContentType.JSON)
-      .body(contextBody(GameContext.initial))
-      .when()
-      .post("/api/rules/all-legal-moves")
-      .`then`()
-      .statusCode(200)
-      .body("moves.size()", is(20))
-
-  // ── legal-moves ───────────────────────────────────────────────────
-
-  @Test
-  def legalMoves_e2PawnHas2Moves(): Unit =
-    request()
-      .contentType(ContentType.JSON)
-      .body(contextSquareBody(GameContext.initial, "e2"))
-      .when()
-      .post("/api/rules/legal-moves")
-      .`then`()
-      .statusCode(200)
-      .body("moves.size()", is(2))
-
-  // ── candidate-moves ───────────────────────────────────────────────
-
-  @Test
-  def candidateMoves_e2PawnHas2Candidates(): Unit =
-    request()
-      .contentType(ContentType.JSON)
-      .body(contextSquareBody(GameContext.initial, "e2"))
-      .when()
-      .post("/api/rules/candidate-moves")
-      .`then`()
-      .statusCode(200)
-      .body("moves.size()", is(2))
-
-  // ── is-check ──────────────────────────────────────────────────────
-
-  @Test
-  def isCheck_falseForInitialPosition(): Unit =
-    request()
-      .contentType(ContentType.JSON)
-      .body(contextBody(GameContext.initial))
-      .when()
-      .post("/api/rules/is-check")
-      .`then`()
-      .statusCode(200)
-      .body("result", is(false))
-
-  @Test
-  def isCheck_trueWhenKingAttacked(): Unit =
-    request()
-      .contentType(ContentType.JSON)
-      .body(contextBody(buildCheckContext()))
-      .when()
-      .post("/api/rules/is-check")
-      .`then`()
-      .statusCode(200)
-      .body("result", is(true))
-
-  // ── is-checkmate ──────────────────────────────────────────────────
-
-  @Test
-  def isCheckmate_falseForInitialPosition(): Unit =
-    request()
-      .contentType(ContentType.JSON)
-      .body(contextBody(GameContext.initial))
-      .when()
-      .post("/api/rules/is-checkmate")
-      .`then`()
-      .statusCode(200)
-      .body("result", is(false))
-
-  @Test
-  def isCheckmate_trueForFoolsMate(): Unit =
-    request()
-      .contentType(ContentType.JSON)
-      .body(contextBody(buildFoolsMate()))
-      .when()
-      .post("/api/rules/is-checkmate")
-      .`then`()
-      .statusCode(200)
-      .body("result", is(true))
-
-  // ── is-stalemate ──────────────────────────────────────────────────
-
-  @Test
-  def isStalemate_falseForInitialPosition(): Unit =
-    request()
-      .contentType(ContentType.JSON)
-      .body(contextBody(GameContext.initial))
-      .when()
-      .post("/api/rules/is-stalemate")
-      .`then`()
-      .statusCode(200)
-      .body("result", is(false))
-
-  @Test
-  def isStalemate_trueForStalematePosition(): Unit =
-    request()
-      .contentType(ContentType.JSON)
-      .body(contextBody(buildStalemateContext()))
-      .when()
-      .post("/api/rules/is-stalemate")
-      .`then`()
-      .statusCode(200)
-      .body("result", is(true))
-
-  // ── is-insufficient-material ──────────────────────────────────────
-
-  @Test
-  def isInsufficientMaterial_falseForInitialPosition(): Unit =
-    request()
-      .contentType(ContentType.JSON)
-      .body(contextBody(GameContext.initial))
-      .when()
-      .post("/api/rules/is-insufficient-material")
-      .`then`()
-      .statusCode(200)
-      .body("result", is(false))
-
-  @Test
-  def isInsufficientMaterial_trueForKingsOnly(): Unit =
-    request()
-      .contentType(ContentType.JSON)
-      .body(contextBody(buildKingsOnlyContext()))
-      .when()
-      .post("/api/rules/is-insufficient-material")
-      .`then`()
-      .statusCode(200)
-      .body("result", is(true))
-
-  // ── is-fifty-move-rule ────────────────────────────────────────────
-
-  @Test
-  def isFiftyMoveRule_falseForInitialPosition(): Unit =
-    request()
-      .contentType(ContentType.JSON)
-      .body(contextBody(GameContext.initial))
-      .when()
-      .post("/api/rules/is-fifty-move-rule")
-      .`then`()
-      .statusCode(200)
-      .body("result", is(false))
-
-  @Test
-  def isFiftyMoveRule_trueWhenClockAt100(): Unit =
-    request()
-      .contentType(ContentType.JSON)
-      .body(contextBody(GameContext.initial.copy(halfMoveClock = 100)))
-      .when()
-      .post("/api/rules/is-fifty-move-rule")
-      .`then`()
-      .statusCode(200)
-      .body("result", is(true))
-
-  // ── is-threefold-repetition ───────────────────────────────────────
-
-  @Test
-  def isThreefoldRepetition_falseForInitialPosition(): Unit =
-    request()
-      .contentType(ContentType.JSON)
-      .body(contextBody(GameContext.initial))
-      .when()
-      .post("/api/rules/is-threefold-repetition")
-      .`then`()
-      .statusCode(200)
-      .body("result", is(false))
-
-  @Test
-  def isThreefoldRepetition_trueAfterRepeatedMoves(): Unit =
-    request()
-      .contentType(ContentType.JSON)
-      .body(contextBody(buildThreefoldContext()))
-      .when()
-      .post("/api/rules/is-threefold-repetition")
-      .`then`()
-      .statusCode(200)
-      .body("result", is(true))
-
-  // ── apply-move ────────────────────────────────────────────────────
-
-  @Test
-  def applyMove_updatesContext(): Unit =
-    val move = rules
-      .legalMoves(GameContext.initial)(Square(File.E, Rank.R2))
-      .find(_.to == Square(File.E, Rank.R4))
-      .get
-    request()
-      .contentType(ContentType.JSON)
-      .body(contextMoveBody(GameContext.initial, move))
-      .when()
-      .post("/api/rules/apply-move")
-      .`then`()
-      .statusCode(200)
-      .body("turn", is("Black"))
-
-  // ── error handling ────────────────────────────────────────────────
-
-  @Test
-  def invalidSquare_returns400(): Unit =
-    request()
-      .contentType(ContentType.JSON)
-      .body(toJson(ContextSquareRequest(DtoMapper.fromGameContext(GameContext.initial), "z9")))
-      .when()
-      .post("/api/rules/legal-moves")
-      .`then`()
-      .statusCode(400)
-
-  // ── position builders ─────────────────────────────────────────────
-
-  private def buildCheckContext(): GameContext =
-    val board = Board(Map(
-      Square(File.E, Rank.R1) -> Piece(Color.White, PieceType.King),
-      Square(File.E, Rank.R8) -> Piece(Color.Black, PieceType.King),
-      Square(File.E, Rank.R3) -> Piece(Color.Black, PieceType.Rook),
-    ))
-    GameContext(board, Color.White, CastlingRights.None, None, 0, List.empty, initialBoard = board)
-
-  private def buildFoolsMate(): GameContext =
-    val moves = List(("f2", "f3"), ("e7", "e5"), ("g2", "g4"), ("d8", "h4"))
-    moves.foldLeft(GameContext.initial) { (ctx, fromTo) =>
-      val from = Square.fromAlgebraic(fromTo._1).get
-      val to   = Square.fromAlgebraic(fromTo._2).get
-      rules.legalMoves(ctx)(from).find(_.to == to).fold(ctx)(rules.applyMove(ctx))
-    }
-
-  private def buildStalemateContext(): GameContext =
-    val board = Board(Map(
-      Square(File.H, Rank.R8) -> Piece(Color.Black, PieceType.King),
-      Square(File.F, Rank.R7) -> Piece(Color.White, PieceType.Queen),
-      Square(File.G, Rank.R6) -> Piece(Color.White, PieceType.King),
-    ))
-    GameContext(board, Color.Black, CastlingRights.None, None, 0, List.empty, initialBoard = board)
-
-  private def buildKingsOnlyContext(): GameContext =
-    val board = Board(Map(
-      Square(File.E, Rank.R1) -> Piece(Color.White, PieceType.King),
-      Square(File.E, Rank.R8) -> Piece(Color.Black, PieceType.King),
-    ))
-    GameContext(board, Color.White, CastlingRights.None, None, 0, List.empty, initialBoard = board)
-
-  private def buildThreefoldContext(): GameContext =
-    val g1 = Square(File.G, Rank.R1)
-    val f3 = Square(File.F, Rank.R3)
-    val g8 = Square(File.G, Rank.R8)
-    val f6 = Square(File.F, Rank.R6)
-    def mv(ctx: GameContext, from: Square, to: Square): GameContext =
-      rules.legalMoves(ctx)(from).find(_.to == to).fold(ctx)(rules.applyMove(ctx))
-    val ctx1 = mv(GameContext.initial, g1, f3)
-    val ctx2 = mv(ctx1, g8, f6)
-    val ctx3 = mv(ctx2, f3, g1)
-    val ctx4 = mv(ctx3, f6, g8)
-    val ctx5 = mv(ctx4, g1, f3)
-    val ctx6 = mv(ctx5, g8, f6)
-    val ctx7 = mv(ctx6, f3, g1)
-    mv(ctx7, f6, g8)
@@ -1,3 +1,3 @@
 MAJOR=0
-MINOR=5
+MINOR=3
 PATCH=0
@@ -0,0 +1,93 @@
+##  (2026-04-01)
+
+### Features
+
+* NCS-10 Implement Pawn Promotion ([#12](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/12)) ([13bfc16](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/13bfc16cfe25db78ec607db523ca6d993c13430c))
+* NCS-16 Core Separation via Patterns ([#10](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/10)) ([1361dfc](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/1361dfc89553b146864fb8ff3526cf12cf3f293a))
+##  (2026-04-01)
+
+### Features
+
+* NCS-10 Implement Pawn Promotion ([#12](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/12)) ([13bfc16](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/13bfc16cfe25db78ec607db523ca6d993c13430c))
+* NCS-16 Core Separation via Patterns ([#10](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/10)) ([1361dfc](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/1361dfc89553b146864fb8ff3526cf12cf3f293a))
+##  (2026-04-01)
+
+### Features
+
+* NCS-10 Implement Pawn Promotion ([#12](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/12)) ([13bfc16](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/13bfc16cfe25db78ec607db523ca6d993c13430c))
+* NCS-16 Core Separation via Patterns ([#10](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/10)) ([1361dfc](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/1361dfc89553b146864fb8ff3526cf12cf3f293a))
+* NCS-17 Implement basic ScalaFX UI ([#14](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/14)) ([3ff8031](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3ff80318b4f16c59733a46498581a5c27f048287))
+##  (2026-04-02)
+
+### Features
+
+* NCS-10 Implement Pawn Promotion ([#12](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/12)) ([13bfc16](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/13bfc16cfe25db78ec607db523ca6d993c13430c))
+* NCS-16 Core Separation via Patterns ([#10](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/10)) ([1361dfc](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/1361dfc89553b146864fb8ff3526cf12cf3f293a))
+* NCS-17 Implement basic ScalaFX UI ([#14](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/14)) ([3ff8031](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3ff80318b4f16c59733a46498581a5c27f048287))
+* 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))
+##  (2026-04-03)
+
+### Features
+
+* NCS-10 Implement Pawn Promotion ([#12](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/12)) ([13bfc16](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/13bfc16cfe25db78ec607db523ca6d993c13430c))
+* NCS-16 Core Separation via Patterns ([#10](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/10)) ([1361dfc](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/1361dfc89553b146864fb8ff3526cf12cf3f293a))
+* NCS-17 Implement basic ScalaFX UI ([#14](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/14)) ([3ff8031](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3ff80318b4f16c59733a46498581a5c27f048287))
+* 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))
+##  (2026-04-07)
+
+### Features
+
+* NCS-10 Implement Pawn Promotion ([#12](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/12)) ([13bfc16](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/13bfc16cfe25db78ec607db523ca6d993c13430c))
+* NCS-16 Core Separation via Patterns ([#10](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/10)) ([1361dfc](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/1361dfc89553b146864fb8ff3526cf12cf3f293a))
+* NCS-17 Implement basic ScalaFX UI ([#14](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/14)) ([3ff8031](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3ff80318b4f16c59733a46498581a5c27f048287))
+* 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))
+##  (2026-04-07)
+
+### Features
+
+* NCS-10 Implement Pawn Promotion ([#12](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/12)) ([13bfc16](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/13bfc16cfe25db78ec607db523ca6d993c13430c))
+* NCS-16 Core Separation via Patterns ([#10](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/10)) ([1361dfc](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/1361dfc89553b146864fb8ff3526cf12cf3f293a))
+* NCS-17 Implement basic ScalaFX UI ([#14](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/14)) ([3ff8031](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3ff80318b4f16c59733a46498581a5c27f048287))
+* 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))
+##  (2026-04-12)
+
+### Features
+
+* NCS-10 Implement Pawn Promotion ([#12](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/12)) ([13bfc16](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/13bfc16cfe25db78ec607db523ca6d993c13430c))
+* NCS-16 Core Separation via Patterns ([#10](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/10)) ([1361dfc](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/1361dfc89553b146864fb8ff3526cf12cf3f293a))
+* NCS-17 Implement basic ScalaFX UI ([#14](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/14)) ([3ff8031](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3ff80318b4f16c59733a46498581a5c27f048287))
+* 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-29 JSON - Cherry Picked ([#28](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/28)) ([dbcafd2](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/dbcafd286993e0604a6fa286c5543581a149439e))
+##  (2026-04-12)
+
+### Features
+
+* NCS-10 Implement Pawn Promotion ([#12](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/12)) ([13bfc16](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/13bfc16cfe25db78ec607db523ca6d993c13430c))
+* NCS-16 Core Separation via Patterns ([#10](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/10)) ([1361dfc](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/1361dfc89553b146864fb8ff3526cf12cf3f293a))
+* NCS-17 Implement basic ScalaFX UI ([#14](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/14)) ([3ff8031](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3ff80318b4f16c59733a46498581a5c27f048287))
+* 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-29 JSON - Cherry Picked ([#28](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/28)) ([dbcafd2](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/dbcafd286993e0604a6fa286c5543581a149439e))
+##  (2026-04-14)
+
+### Features
+
+* NCS-10 Implement Pawn Promotion ([#12](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/12)) ([13bfc16](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/13bfc16cfe25db78ec607db523ca6d993c13430c))
+* 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-16 Core Separation via Patterns ([#10](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/10)) ([1361dfc](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/1361dfc89553b146864fb8ff3526cf12cf3f293a))
+* NCS-17 Implement basic ScalaFX UI ([#14](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/14)) ([3ff8031](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3ff80318b4f16c59733a46498581a5c27f048287))
+* 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-29 JSON - Cherry Picked ([#28](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/28)) ([dbcafd2](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/dbcafd286993e0604a6fa286c5543581a149439e))
+##  (2026-04-16)
+
+### Features
+
+* NCS-10 Implement Pawn Promotion ([#12](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/12)) ([13bfc16](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/13bfc16cfe25db78ec607db523ca6d993c13430c))
+* 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-16 Core Separation via Patterns ([#10](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/10)) ([1361dfc](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/1361dfc89553b146864fb8ff3526cf12cf3f293a))
+* NCS-17 Implement basic ScalaFX UI ([#14](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/14)) ([3ff8031](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3ff80318b4f16c59733a46498581a5c27f048287))
+* 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-29 JSON - Cherry Picked ([#28](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/28)) ([dbcafd2](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/dbcafd286993e0604a6fa286c5543581a149439e))
@@ -0,0 +1,101 @@
+import org.gradle.api.file.DuplicatesStrategy
+import org.gradle.jvm.tasks.Jar
+
+plugins {
+    id("scala")
+    id("org.scoverage")
+    application
+}
+
+group = "de.nowchess"
+version = "1.0-SNAPSHOT"
+
+@Suppress("UNCHECKED_CAST")
+val versions = rootProject.extra["VERSIONS"] as Map<String, String>
+
+repositories {
+    mavenCentral()
+}
+
+scala {
+    scalaVersion = versions["SCALA3"]!!
+}
+
+scoverage {
+    scoverageVersion.set(versions["SCOVERAGE"]!!)
+    excludedPackages.set(listOf("de\\.nowchess\\.ui\\..*"))
+}
+
+application {
+    mainClass.set("de.nowchess.ui.Main")
+}
+
+tasks.withType<ScalaCompile> {
+    scalaCompileOptions.additionalParameters = listOf("-encoding", "UTF-8")
+}
+
+tasks.named<JavaExec>("run") {
+    jvmArgs("-Dfile.encoding=UTF-8", "-Dstdout.encoding=UTF-8", "-Dstderr.encoding=UTF-8")
+    standardInput = System.`in`
+}
+
+tasks.named<Jar>("jar") {
+    duplicatesStrategy = DuplicatesStrategy.EXCLUDE
+}
+
+dependencies {
+
+    implementation("org.scala-lang:scala3-compiler_3") {
+        version {
+            strictly(versions["SCALA3"]!!)
+        }
+    }
+    implementation("org.scala-lang:scala3-library_3") {
+        version {
+            strictly(versions["SCALA3"]!!)
+        }
+    }
+
+    implementation(project(":modules:core"))
+    implementation(project(":modules:rule"))
+    implementation(project(":modules:api"))
+    implementation(project(":modules:io"))
+    implementation(project(":modules:bot"))
+
+    // ScalaFX dependencies
+    implementation("org.scalafx:scalafx_3:${versions["SCALAFX"]!!}")
+    
+    // JavaFX dependencies for the current platform
+    val javaFXVersion = versions["JAVAFX"]!!
+    val osName = System.getProperty("os.name").lowercase()
+    val platform = when {
+        osName.contains("win") -> "win"
+        osName.contains("mac") -> "mac"
+        osName.contains("linux") -> "linux"
+        else -> "linux"
+    }
+    
+    listOf("base", "controls", "graphics", "media").forEach { module ->
+        implementation("org.openjfx:javafx-$module:$javaFXVersion:$platform")
+    }
+
+    testImplementation(platform("org.junit:junit-bom:${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"]!!}")
+
+    testRuntimeOnly("org.junit.platform:junit-platform-launcher")
+}
+
+tasks.test {
+    useJUnitPlatform {
+        includeEngines("scalatest")
+        testLogging {
+            events("skipped", "failed")
+        }
+    }
+    finalizedBy(tasks.reportScoverage)
+}
+tasks.reportScoverage {
+    dependsOn(tasks.test)
+}
--- a/Show More
+++ b/Show More