LibChess: Forbid King moving into check by a pawn on the home rank

A player can no longer move the King piece into any position on their home rank if the move would place the King in check. A player can also no longer ignore a check position when in check by a pawn on their home rank. The player must now resolve the check during their move.
Author: https://github.com/bcoles Commit: d4c34d50c9 Pull-request: https://github.com/SerenityOS/serenity/pull/3874 Issue: https://github.com/SerenityOS/serenity/issues/3525 Issue: https://github.com/SerenityOS/serenity/issues/3526 Reviewed-by: https://github.com/petelliott ✅
2025-09-20 08:18:55 +00:00 · 2020-10-30 06:39:44 +00:00 · 2020-10-30 06:39:44 +00:00 · d4c34d50c9 · 2024-07-19 01:38:46 +09:00
commit d4c34d50c9
parent 6365b44773
2 changed files with 60 additions and 25 deletions
--- a/Libraries/LibChess/Chess.h
+++ b/Libraries/LibChess/Chess.h
@ -159,6 +159,7 @@ public:

 private:
    bool is_legal_no_check(const Move&, Colour colour) const;
+    bool is_legal_promotion(const Move&, Colour colour) const;
    bool apply_illegal_move(const Move&, Colour colour);

    Piece m_board[8][8];