Chess Puzzle #9WL8a — Advanced, White to move, middlegame

Position

White: king g5; rook d1; bishop f5; pawns b3/c4/d6/h2. Black: king e5; rook b8; bishop c3; pawns a2/c5/h7. White is ahead by 1 point of material. White to move.

Solution (1 move)

1. Opponent setup: a1=Q — pawn a2→a1, promotes to queen. Now White to move.
2. Best move: Rd5# — rook d1→d5, delivers checkmate.

Tactical themes

endgame, mate, mate in 1, one move. The combination ends with Rd5# delivering checkmate.

Position data

FEN: 1r6/7p/3P4/2p1kBK1/2P5/1Pb5/p6P/3R4 b - - 1 44

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