Chess Puzzle #KN4K9 — Master, White to move, endgame

Position

White: king e5; queen e7; pawns a3/d7. Black: king h5; queen f1; pawns a7/c3/g6/h7. Black is ahead by 2 points of material. White to move.

Solution (4 moves)

1. Opponent setup: Qf5+ — queen f1→f5, gives check. Now White to move.
2. Best move: Kd4 — king e5→d4. Opponent replies c2 (pawn c3→c2).
3. Best move: Qxh7+ — queen e7→h7, captures pawn, gives check. Opponent replies Kg4 (king h5→g4).
4. Best move: d8=Q — pawn d7→d8, promotes to queen. Opponent replies Qf2+ (queen f5→f2, gives check).
5. Best move: Kd3 — king d4→d3.

Tactical themes

advanced pawn, crushing, endgame, master, promotion, queen endgame, very long. The key move Qxh7+ captures with check, forcing a response.

Position data

FEN: 8/p2PQ2p/6p1/4K2k/8/P1p5/8/5q2 b - - 0 61

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