Chess Puzzle #Q73Aj — Expert, White to move, middlegame

Position

White: king g1; queen g8; rook f7; bishop f2; pawns c4/g2/h3. Black: king h6; queen c3; rook e2; bishops f5/f6; pawns b6/c5/f4/g6/h5. Black is ahead by 5 points of material. White to move.

Solution (4 moves)

1. Opponent setup: f3 — pawn f4→f3. Now White to move.
2. Best move: Rh7+ — rook f7→h7, gives check. Opponent replies Kg5 (king h6→g5).
3. Best move: Rxh5+ — rook h7→h5, captures pawn, gives check. Opponent replies Kxh5 (king g5→h5, captures rook).
4. Best move: Qh7+ — queen g8→h7, gives check. Opponent replies Kg5 (king h5→g5).
5. Best move: Qh4# — queen h7→h4, delivers checkmate.

Tactical themes

attraction, mate, mate in 4, middlegame, pin, sacrifice, very long. The combination ends with Qh4# delivering checkmate.

Position data

FEN: 6Q1/5R2/1p3bpk/2p2b1p/2P2p2/2q4P/4rBP1/6K1 b - - 1 40

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