Chess Puzzle #OB1iV — Advanced, Black to move, endgame

Position

White: king h1; queen f8; rook d1; pawns c3/g2/h2. Black: king h5; queen e5; knight e4; pawns f5/g6/h7. White is ahead by 2 points of material. Black to move.

Solution (3 moves)

1. Opponent setup: Rf1 — rook d1→f1. Now Black to move.
2. Best move: Nf2+ — knight e4→f2, gives check. Opponent replies Kg1 (king h1→g1).
3. Best move: Ng4 — knight f2→g4. Opponent replies g3 (pawn g2→g3).
4. Best move: Qe3+ — queen e5→e3, gives check.

Tactical themes

advantage, endgame, long. The key move is Nf2+.

Position data

FEN: 5Q2/7p/6p1/4qp1k/4n3/2P5/6PP/3R3K w - - 9 37

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