feat: add FEN piece-placement parser

Implements FenParser.parseBoard() to parse FEN piece-placement strings
into a Board, with proper None propagation on invalid input.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
2026-03-28 18:28:21 +01:00
parent 707c4826a4
commit 2925c385bc
3 changed files with 6 additions and 139 deletions
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#FileLock
#Sun Mar 29 15:06:23 CEST 2026
hostName=localhost
id=19d39612ed6c322b6ba3c2fc0853ca12997433c4dd8
method=file
server=localhost\:46585