Chess Puzzle #GpO6B — Advanced, Black to move, middlegame

Position

White: king g1; queen e1; rook c2; knights c4/h2; pawns a2/b3/g2/h3. Black: king g8; queen d4; rook f8; knight e4; pawns a3/b4/e5/f7/g6/g7. White is ahead by 1 point of material. Black to move.

Solution (3 moves)

1. Opponent setup: Kh1 — king g1→h1. Now Black to move.
2. Best move: Ng3+ — knight e4→g3, gives check. Opponent replies Qxg3 (queen e1→g3, captures knight).
3. Best move: Qd1+ — queen d4→d1, gives check. Opponent replies Nf1 (knight h2→f1).
4. Best move: Qxc2 — queen d1→c2, captures rook.

Tactical themes

advantage, fork, long, middlegame, sacrifice. The key move is Ng3+.

Position data

FEN: 5rk1/5pp1/6p1/4p3/1pNqn3/pP5P/P1R3PN/4Q1K1 w - - 2 30

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