Chess Puzzle #R9lAU — Expert, Black to move, middlegame

Position

White: king c1; queen a7; rook h1; pawns b2/b3/c2/f2/g5/h4. Black: king g8; queen e5; rook d8; pawns c6/e4/f5/g7/h5. White is ahead by 1 point of material. Black to move.

Solution (4 moves)

1. Opponent setup: Qe3 — queen a7→e3. Now Black to move.
2. Best move: Qa5 — queen e5→a5. Opponent replies Kb1 (king c1→b1).
3. Best move: Ra8 — rook d8→a8. Opponent replies c3 (pawn c2→c3).
4. Best move: Qa1+ — queen a5→a1, gives check. Opponent replies Kc2 (king b1→c2).
5. Best move: Qxh1 — queen a1→h1, captures rook.

Tactical themes

crushing, endgame, quiet move, skewer, very long. The key move is Qa5.

Position data

FEN: 3r2k1/Q5p1/2p5/4qpPp/4p2P/1P6/1PP2P2/2K4R w - - 1 27

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