Chess Puzzle #jDvm2 — Advanced, White to move, middlegame

Position

White: king c1; queen h2; rook h1; bishop e3; knights b1/h3; pawns b2/e4/f6/g5. Black: king g8; queen c7; rooks a1/a8; bishops b3/d6; pawns b5/c6/e5/f7/g7. Black is ahead by 3 points of material. White to move.

Solution (5 moves)

1. Opponent setup: Ba2 — bishop b3→a2. Now White to move.
2. Best move: Ng1 — knight h3→g1. Opponent replies Rxb1+ (rook a1→b1, captures knight, gives check).
3. Best move: Kc2 — king c1→c2. Opponent replies Bb3+ (bishop a2→b3, gives check).
4. Best move: Kxb3 — king c2→b3, captures bishop. Opponent replies Rxb2+ (rook b1→b2, captures pawn, gives check).
5. Best move: Kxb2 — king b3→b2, captures rook. Opponent replies Ra2+ (rook a8→a2, gives check).
6. Best move: Kxa2 — king b2→a2, captures rook.

Tactical themes

crushing, middlegame, quiet move, sacrifice, very long. The key move is Ng1.

Position data

FEN: r5k1/2q2pp1/2pb1P2/1p2p1P1/4P3/1b2B2N/1P5Q/rNK4R b - - 0 25

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