Chess Puzzle #aGm9m — Advanced, Black to move, middlegame

Position

White: king g1; queen d5; rooks a1/f1; bishop c1; knight b1; pawns a2/c3/g3/h2. Black: king h8; queen g4; rook f8; bishop c5; knight f2; pawns a7/d4/d6/g7/h7. White is ahead by 4 points of material. Black to move.

Solution (3 moves)

1. Opponent setup: Ba3 — bishop c1→a3. Now Black to move.
2. Best move: Nh3+ — knight f2→h3, gives check. Opponent replies Kg2 (king g1→g2).
3. Best move: Qe2+ — queen g4→e2, gives check. Opponent replies Kxh3 (king g2→h3, captures knight).
4. Best move: Qxf1+ — queen e2→f1, captures rook, gives check.

Tactical themes

crushing, deflection, kingside attack, long, middlegame. The key move Qxf1+ captures with check, forcing a response.

Position data

FEN: 5r1k/p5pp/3p4/2bQ4/3p2q1/2P3P1/P4n1P/RNB2RK1 w - - 1 21

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