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

Position

White: king g1; queen f1; rooks a1/h1; bishops c1/c4; knights b1/f7; pawns a2/b2/c2/d2/g2/h2. Black: king c7; queen h4; rook f8; bishop g4; knights d4/e4; pawns a7/b7/d6/e5/g7/h7. White is ahead by 8 points of material. Black to move.

Solution (3 moves)

1. Opponent setup: c3 — pawn c2→c3. Now Black to move.
2. Best move: Nf3+ — knight d4→f3, gives check. Opponent replies gxf3 (pawn g2→f3, captures knight).
3. Best move: Bh3 — bishop g4→h3. Opponent replies fxe4 (pawn f3→e4, captures knight).
4. Best move: Bxf1 — bishop h3→f1, captures queen.

Tactical themes

advantage, kingside attack, long, middlegame, sacrifice. The key move is Nf3+.

Position data

FEN: 5r2/ppk2Npp/3p4/4p3/2Bnn1bq/8/PPPP2PP/RNB2QKR w - - 11 16

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