Chess Puzzle #9crBI — Advanced, Black to move, endgame

Position

White: king e5; queen e3; pawn a2. Black: king g4; queen f1; pawns a7/c7. Black is ahead by 1 point of material. Black to move.

Solution (3 moves)

1. Opponent setup: Qxa7 — queen e3→a7, captures pawn. Now Black to move.
2. Best move: Qf5+ — queen f1→f5, gives check. Opponent replies Kd4 (king e5→d4).
3. Best move: Qf2+ — queen f5→f2, gives check. Opponent replies Kc3 (king d4→c3).
4. Best move: Qxa7 — queen f2→a7, captures queen.

Tactical themes

crushing, endgame, long, queen endgame, skewer. The key move is Qf5+.

Position data

FEN: 8/p1p5/8/4K3/6k1/4Q3/P7/5q2 w - - 18 80

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