Chess Puzzle #TQ3cF — Expert, Black to move, endgame

Position

White: king h3; queen g3; knight e5; pawn f4. Black: king e6; queen c2; pawns b2/c5/f5. White is ahead by 1 point of material. Black to move.

Solution (4 moves)

1. Opponent setup: Qg6+ — queen g3→g6, gives check. Now Black to move.
2. Best move: Kd5 — king e6→d5. Opponent replies Qg8+ (queen g6→g8, gives check).
3. Best move: Ke4 — king d5→e4. Opponent replies Qc4+ (queen g8→c4, gives check).
4. Best move: Qxc4 — queen c2→c4, captures queen. Opponent replies Nxc4 (knight e5→c4, captures queen).
5. Best move: b1=N — pawn b2→b1, promotes to knight.

Tactical themes

advanced pawn, crushing, endgame, promotion, underpromotion, very long. The key move is Kd5.

Position data

FEN: 8/8/4k3/2p1Np2/5P2/6QK/1pq5/8 w - - 2 54

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