Chess Puzzle #3GW7N — Advanced, White to move, middlegame

Position

White: king c1; queen h6; rooks e1/h1; knights e2/f3; pawns a2/b2/c2/e4/g2/h4. Black: king h8; queen f2; rooks a8/f8; bishop e7; knights c6/h7; pawns b4/c7/d6/e5/f7. Black is ahead by 2 points of material. White to move.

Solution (4 moves)

1. Opponent setup: Rxa2 — rook a8→a2, captures pawn. Now White to move.
2. Best move: Ng5 — knight f3→g5. Opponent replies Bxg5+ (bishop e7→g5, captures knight, gives check).
3. Best move: hxg5 — pawn h4→g5, captures bishop. Opponent replies Ra1+ (rook a2→a1, gives check).
4. Best move: Kd2 — king c1→d2. Opponent replies Qxe1+ (queen f2→e1, captures rook, gives check).
5. Best move: Rxe1 — rook h1→e1, captures queen.

Tactical themes

advantage, middlegame, very long. The key move is Ng5.

Position data

FEN: r4r1k/2p1bp1n/2np3Q/4p3/1p2P2P/5N2/PPP1NqP1/2K1R2R b - - 1 20

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