Chess Puzzle #I9lQj — Expert, Black to move, middlegame

Position

White: king h1; queen f2; rook g1; bishops a3/f1; knight b1; pawns a5/c2/c3/f3/h2. Black: king h8; queen b7; rook d8; bishop e4; knight f6; pawns a7/b5/c4/e5/f4/f7/h7. White is ahead by 1 point of material. Black to move.

Solution (4 moves)

1. Opponent setup: fxe4 — pawn f3→e4, captures bishop. Now Black to move.
2. Best move: Nxe4 — knight f6→e4, captures pawn. Opponent replies Qf3 (queen f2→f3).
3. Best move: Nf2+ — knight e4→f2, gives check. Opponent replies Kg2 (king h1→g2).
4. Best move: e4 — pawn e5→e4. Opponent replies Kxf2 (king g2→f2, captures knight).
5. Best move: exf3 — pawn e4→f3, captures queen.

Tactical themes

crushing, kingside attack, master, middlegame, pin, very long. The key move Nxe4 wins material.

Position data

FEN: 3r3k/pq3p1p/5n2/Pp2p3/2p1bp2/B1P2P2/2P2Q1P/1N3BRK w - - 0 28

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