Chess Puzzle #hdacL — Master, White to move, middlegame

Position

White: king d1; queen b7; pawns b3/b4/c2/g2/h4. Black: king d5; queen b2; bishop f6; pawns a2/e5/g7/h6. Black is ahead by 2 points of material. White to move.

Solution (4 moves)

1. Opponent setup: Kd4 — king d5→d4. Now White to move.
2. Best move: Qd7+ — queen b7→d7, gives check. Opponent replies Ke3 (king d4→e3).
3. Best move: Qd2+ — queen d7→d2, gives check. Opponent replies Ke4 (king e3→e4).
4. Best move: Qd3+ — queen d2→d3, gives check. Opponent replies Kf4 (king e4→f4).
5. Best move: Qf3# — queen d3→f3, delivers checkmate.

Tactical themes

endgame, mate, mate in 4, very long. The combination ends with Qf3# delivering checkmate.

Position data

FEN: 8/1Q4p1/5b1p/3kp3/1P5P/1P6/pqP3P1/3K4 b - - 0 46

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