Chess Puzzle #Pyc5Y — Expert, White to move, middlegame

Position

White: king h1; queen b7; rooks c7/f1; pawns b4/g2/h3. Black: king g6; queen d6; rooks e3/e8; pawns d2/f6/h5. Material is balanced. White to move.

Solution (4 moves)

1. Opponent setup: Re1 — rook e3→e1. Now White to move.
2. Best move: Rg7+ — rook c7→g7, gives check. Opponent replies Kh6 (king g6→h6).
3. Best move: Rh7+ — rook g7→h7, gives check. Opponent replies Kg5 (king h6→g5).
4. Best move: Qg7+ — queen b7→g7, gives check. Opponent replies Kh4 (king g5→h4).
5. Best move: Qg4# — queen g7→g4, delivers checkmate.

Tactical themes

endgame, epaulette mate, mate, mate in 4, pin, very long. The combination ends with Qg4# delivering checkmate.

Position data

FEN: 4r3/1QR5/3q1pk1/7p/1P6/4r2P/3p2P1/5R1K b - - 1 42

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