Chess Puzzle #D3gNu — Advanced, Black to move, middlegame

Position

White: king g1; rooks c7/d4; pawns a3/b2/c4/f2/g2/h2. Black: king g7; rook a8; bishop f5; knight e4; pawns a5/f7/g6. White is ahead by 2 points of material. Black to move.

Solution (3 moves)

1. Opponent setup: g4 — pawn g2→g4. Now Black to move.
2. Best move: Ng5 — knight e4→g5. Opponent replies gxf5 (pawn g4→f5, captures bishop).
3. Best move: Nf3+ — knight g5→f3, gives check. Opponent replies Kf1 (king g1→f1).
4. Best move: Nxd4 — knight f3→d4, captures rook.

Tactical themes

endgame, equality, fork, long, quiet move, sacrifice. The key move is Ng5.

Position data

FEN: r7/2R2pk1/6p1/p4b2/2PRn3/P7/1P3PPP/6K1 w - - 0 26

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