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

Position

White: king c1; queen b8; knights d1/g5; pawns b3/c2/e5/f5/g4/h3. Black: king g7; queen a5; bishops d5/f8; pawns a6/c6/e7/f7/g6/h7. Material is balanced. White to move.

Solution (4 moves)

1. Opponent setup: e6 — pawn e7→e6. Now White to move.
2. Best move: f6+ — pawn f5→f6, gives check. Opponent replies Kg8 (king g7→g8).
3. Best move: Qa7 — queen b8→a7. Opponent replies Qa1+ (queen a5→a1, gives check).
4. Best move: Kd2 — king c1→d2. Opponent replies Qd4+ (queen a1→d4, gives check).
5. Best move: Qxd4 — queen a7→d4, captures queen.

Tactical themes

crushing, endgame, very long. The key move is f6+.

Position data

FEN: 1Q3b2/4ppkp/p1p3p1/q2bPPN1/6P1/1P5P/2P5/2KN4 b - - 0 25

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