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

Position

White: king d1; queen h8; rooks b1/h1; bishop f1; knight g1; pawns a2/d4/e3/f2/g2/h2. Black: king f7; queen a4; bishop b4; knight d7; pawns e6/g7/h6. White is ahead by 13 points of material. Black to move.

Solution (3 moves)

1. Opponent setup: Kc1 — king d1→c1. Now Black to move.
2. Best move: Ba3+ — bishop b4→a3, gives check. Opponent replies Rb2 (rook b1→b2).
3. Best move: Bxb2+ — bishop a3→b2, captures rook, gives check. Opponent replies Kxb2 (king c1→b2, captures bishop).
4. Best move: Qb4+ — queen a4→b4, gives check.

Tactical themes

attraction, equality, exposed king, long, middlegame, queenside attack. The key move Bxb2+ captures with check, forcing a response.

Position data

FEN: 7Q/3n1kp1/4p2p/8/qb1P4/4P3/P4PPP/1R1K1BNR w - - 1 21

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