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

Position

White: king g1; queen g2; rook d2; bishop f3; pawns a3/b4/d6/e3/g4. Black: king b8; queen e6; rook f8; knight g6; pawns a6/b7. White is ahead by 3 points of material. Black to move.

Solution (4 moves)

1. Opponent setup: e4 — pawn e3→e4. Now Black to move.
2. Best move: Nh4 — knight g6→h4. Opponent replies d7 (pawn d6→d7).
3. Best move: Nxg2 — knight h4→g2, captures queen. Opponent replies d8=R+ (pawn d7→d8, promotes to rook, gives check).
4. Best move: Rxd8 — rook f8→d8, captures rook. Opponent replies Rxd8+ (rook d2→d8, captures rook, gives check).
5. Best move: Kc7 — king b8→c7.

Tactical themes

advantage, endgame, very long. The key move is Nh4.

Position data

FEN: 1k3r2/1p6/p2Pq1n1/8/1P4P1/P3PB2/3R2Q1/6K1 w - - 2 40

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