Chess Puzzle #Ehbka — Master, Black to move, endgame

Position

White: king h3; queen e4; pawns a3/e3/g3/h4. Black: king g8; queen f1; pawns f7/g7/h6. White is ahead by 1 point of material. Black to move.

Solution (4 moves)

1. Opponent setup: Kg4 — king h3→g4. Now Black to move.
2. Best move: g6 — pawn g7→g6. Opponent replies Qf3 (queen e4→f3).
3. Best move: f5+ — pawn f7→f5, gives check. Opponent replies Kf4 (king g4→f4).
4. Best move: g5+ — pawn g6→g5, gives check. Opponent replies Kxf5 (king f4→f5, captures pawn).
5. Best move: Qxf3+ — queen f1→f3, captures queen, gives check.

Tactical themes

crushing, deflection, endgame, queen endgame, quiet move, very long. The key move Qxf3+ captures with check, forcing a response.

Position data

FEN: 6k1/5pp1/7p/8/4Q2P/P3P1PK/8/5q2 w - - 1 40

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