- packages/chess/src/engine.ts — ChessEngine integrates all rule modules
(pawn, knight, sliding, king, castling, en-passant, promotion, check,
checkmate, stalemate, draws) into a playable game without the Rete
production network
- packages/chess/src/pgn.ts — minimal SAN/PGN parser with full
disambiguation support (file/rank hints, full from-square)
- packages/chess/tests/fide-games/classic-games.test.ts — 5 game tests:
Fool's Mate, Scholar's Mate, Ruy López, Sicilian Defence, Italian Game
All 5 tests green; typecheck clean.
Joey Yakimowich-Payne
6baab9f3fd