Chess Puzzle #ZO7v2 — Advanced, Black to move, middlegame

Position

White: king g3; queen g2; rook e5; pawns a2/e3/f4/h4. Black: king f8; queen d3; rook d1; pawns a6/b7/f7/h6. Material is balanced. Black to move.

Solution (4 moves)

1. Opponent setup: Qxb7 — queen g2→b7, captures pawn. Now Black to move.
2. Best move: Rg1+ — rook d1→g1, gives check. Opponent replies Kh2 (king g3→h2).
3. Best move: Qf1 — queen d3→f1. Opponent replies Qa8+ (queen b7→a8, gives check).
4. Best move: Kg7 — king f8→g7. Opponent replies Qf3 (queen a8→f3).
5. Best move: Qxf3 — queen f1→f3, captures queen.

Tactical themes

crushing, endgame, very long. The key move is Rg1+.

Position data

FEN: 5k2/1p3p2/p6p/4R3/5P1P/3qP1K1/P5Q1/3r4 w - - 7 54

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