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

Position

White: king c1; queen d2; rooks d1/e1; bishop d3; knight g1; pawns a3/b2/c2/f3/f4/g5/h6. Black: king c8; queen e7; rooks d8/e8; bishop b7; knight d4; pawns a5/b6/c7/d6/e5/f5/g6/h7. Black is ahead by 1 point of material. White to move.

Solution (3 moves)

1. Opponent setup: Bxf3 — bishop b7→f3, captures pawn. Now White to move.
2. Best move: Nxf3 — knight g1→f3, captures bishop. Opponent replies Nxf3 (knight d4→f3, captures knight).
3. Best move: Ba6+ — bishop d3→a6, gives check. Opponent replies Kb8 (king c8→b8).
4. Best move: Qd5 — queen d2→d5.

Tactical themes

advantage, clearance, long, middlegame. The key move Nxf3 wins material.

Position data

FEN: 2krr3/1bp1q2p/1p1p2pP/p3ppP1/3n1P2/P2B1P2/1PPQ4/2KRR1N1 b - - 1 21

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