Chess Puzzle #0QQxp — Advanced, Black to move, middlegame

Position

White: king c1; queen c3; rooks d1/h1; bishop e3; knight f3; pawns b3/c2/d3/f2/g2/h3. Black: king e8; queen e7; rooks b8/h8; knight b4; pawns a3/a6/c7/e5/f6/g7/h6. White is ahead by 2 points of material. Black to move.

Solution (3 moves)

1. Opponent setup: Bc5 — bishop e3→c5. Now Black to move.
2. Best move: Na2+ — knight b4→a2, gives check. Opponent replies Kd2 (king c1→d2).
3. Best move: Nxc3 — knight a2→c3, captures queen. Opponent replies Bxe7 (bishop c5→e7, captures queen).
4. Best move: Nxd1 — knight c3→d1, captures rook.

Tactical themes

equality, fork, long, middlegame. The key move is Na2+.

Position data

FEN: 1r2k2r/2p1q1p1/p4p1p/4p3/1n6/pPQPBN1P/2P2PP1/2KR3R w k - 3 21

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