Chess Puzzle #b53CE — Expert, Black to move, middlegame

Position

White: king g1; queen f1; rooks c6/d6; bishop b1; pawns a3/b2/e7/f2/h3. Black: king g8; queen e5; rooks e8/f8; knight e2; pawns a7/b4/g5/h6. White is ahead by 1 point of material. Black to move.

Solution (4 moves)

1. Opponent setup: Kh1 — king g1→h1. Now Black to move.
2. Best move: Ng3+ — knight e2→g3, gives check. Opponent replies Kg2 (king h1→g2).
3. Best move: Nxf1 — knight g3→f1, captures queen. Opponent replies Rg6+ (rook d6→g6, gives check).
4. Best move: Kf7 — king g8→f7. Opponent replies exf8=Q+ (pawn e7→f8, captures rook, promotes to queen, gives check).
5. Best move: Kxf8 — king f7→f8, captures queen.

Tactical themes

advantage, middlegame, very long. The key move is Ng3+.

Position data

FEN: 4rrk1/p3P3/2RR3p/4q1p1/1p6/P6P/1P2nP2/1B3QK1 w - - 1 31

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