Chess Puzzle #UJwqq — Advanced, Black to move, endgame

Position

White: king b3; queen e5; pawns a3/b2/c3/g5. Black: king g6; queen g4; pawns a6/b5/f5. White is ahead by 1 point of material. Black to move.

Solution (3 moves)

1. Opponent setup: Qd5 — queen e5→d5. Now Black to move.
2. Best move: Qa4+ — queen g4→a4, gives check. Opponent replies Ka2 (king b3→a2).
3. Best move: Qc4+ — queen a4→c4, gives check. Opponent replies Qxc4 (queen d5→c4, captures queen).
4. Best move: bxc4 — pawn b5→c4, captures queen.

Tactical themes

crushing, endgame, long, queen endgame. The key move is Qa4+.

Position data

FEN: 8/8/p5k1/1p2QpP1/6q1/PKP5/1P6/8 w - - 1 58

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