Chess Puzzle #c6n91 — Expert, Black to move, middlegame

Position

White: king g1; queen e1; rooks a1/f1; bishop e2; knights c4/e3; pawns a2/d3/e4/f4/g2/h2. Black: king g8; queen c3; rook f8; bishops c8/g7; knights d4/d7; pawns a7/c5/d6/e7/f7/g6/h7. White is ahead by 1 point of material. Black to move.

Solution (4 moves)

1. Opponent setup: Nd5 — knight e3→d5. Now Black to move.
2. Best move: Qxa1 — queen c3→a1, captures rook. Opponent replies Nxe7+ (knight d5→e7, captures pawn, gives check).
3. Best move: Kh8 — king g8→h8. Opponent replies Qxa1 (queen e1→a1, captures queen).
4. Best move: Nxe2+ — knight d4→e2, captures bishop, gives check. Opponent replies Kf2 (king g1→f2).
5. Best move: Bxa1 — bishop g7→a1, captures queen.

Tactical themes

advantage, discovered attack, master, middlegame, sacrifice, very long. The key move Nxe2+ captures with check, forcing a response.

Position data

FEN: 2b2rk1/p2nppbp/3p2p1/2p5/2NnPP2/2qPN3/P3B1PP/R3QRK1 w - - 4 18

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