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

Position

White: king g1; queen d1; rooks a1/e1; bishop c1; knights b1/e6; pawns a2/b2/c3/e4/g2/h2. Black: king g8; queen f6; rooks a8/f8; knights c6/g4; pawns a7/b7/c7/d6/g7/h7. White is ahead by 3 points of material. Black to move.

Solution (4 moves)

1. Opponent setup: Nxf8 — knight e6→f8, captures rook. Now Black to move.
2. Best move: Qf2+ — queen f6→f2, gives check. Opponent replies Kh1 (king g1→h1).
3. Best move: Qh4 — queen f2→h4. Opponent replies Bf4 (bishop c1→f4).
4. Best move: Nf2+ — knight g4→f2, gives check. Opponent replies Kg1 (king h1→g1).
5. Best move: Nxd1 — knight f2→d1, captures queen.

Tactical themes

advantage, fork, middlegame, very long. The key move is Qf2+.

Position data

FEN: r4rk1/ppp3pp/2npNq2/8/4P1n1/2P5/PP4PP/RNBQR1K1 w - - 3 13

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