Chess Puzzle #3P1ev — Advanced, White to move, middlegame

Position

White: king d2; queen d8; pawns a2/b3/c4/e3/f2/f3/h2. Black: king f6; queen h1; rook b6; pawns a7/c7/e6/g6/g7/h7. Black is ahead by 4 points of material. White to move.

Solution (4 moves)

1. Opponent setup: Kf5 — king f6→f5. Now White to move.
2. Best move: Qf8+ — queen d8→f8, gives check. Opponent replies Kg5 (king f5→g5).
3. Best move: Qf4+ — queen f8→f4, gives check. Opponent replies Kh5 (king g5→h5).
4. Best move: Qg4+ — queen f4→g4, gives check. Opponent replies Kh6 (king h5→h6).
5. Best move: Qh4# — queen g4→h4, delivers checkmate.

Tactical themes

endgame, mate, mate in 4, very long. The combination ends with Qh4# delivering checkmate.

Position data

FEN: 3Q4/p1p3pp/1r2pkp1/8/2P5/1P2PP2/P2K1P1P/7q b - - 5 26

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