Chess Puzzle #bPg2Q — Expert, White to move, middlegame

Position

White: king g1; queen a4; rook e3; bishop f1; pawns a3/f2/g2/h2. Black: king d7; queen c1; rook h8; bishop f8; knight c6; pawns a7/b7/c7/f7/g7/h7. Black is ahead by 5 points of material. White to move.

Solution (4 moves)

1. Opponent setup: Bc5 — bishop f8→c5. Now White to move.
2. Best move: Qg4+ — queen a4→g4, gives check. Opponent replies Kd8 (king d7→d8).
3. Best move: Qg5+ — queen g4→g5, gives check. Opponent replies Kc8 (king d8→c8).
4. Best move: Re8+ — rook e3→e8, gives check. Opponent replies Rxe8 (rook h8→e8, captures rook).
5. Best move: Qxc1 — queen g5→c1, captures queen.

Tactical themes

discovered attack, equality, middlegame, very long. The key move is Qg4+.

Position data

FEN: 5b1r/pppk1ppp/2n5/8/Q7/P3R3/5PPP/2q2BK1 b - - 3 20

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