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

Position

White: king e7; queen a5; pawns a4/f4. Black: king b7; queen b1; pawns f6/g7. Material is balanced. Black to move.

Solution (4 moves)

1. Opponent setup: Qb5+ — queen a5→b5, gives check. Now Black to move.
2. Best move: Qxb5 — queen b1→b5, captures queen. Opponent replies axb5 (pawn a4→b5, captures queen).
3. Best move: g5 — pawn g7→g5. Opponent replies f5 (pawn f4→f5).
4. Best move: g4 — pawn g5→g4. Opponent replies Kxf6 (king e7→f6, captures pawn).
5. Best move: g3 — pawn g4→g3.

Tactical themes

crushing, endgame, queen endgame, quiet move, very long. The key move Qxb5 wins material.

Position data

FEN: 8/1k2K1p1/5p2/Q7/P4P2/8/8/1q6 w - - 1 53

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