Chess Puzzle #nCAJH — Expert, Black to move, endgame

Position

White: king c2; rook d2; knight e1; pawns a3/b2. Black: king c4; rook g3; knight d5; pawn a5. White is ahead by 1 point of material. Black to move.

Solution (4 moves)

1. Opponent setup: Ng2 — knight e1→g2. Now Black to move.
2. Best move: Rxg2 — rook g3→g2, captures knight. Opponent replies b3+ (pawn b2→b3, gives check).
3. Best move: Kb5 — king c4→b5. Opponent replies Rxg2 (rook d2→g2, captures rook).
4. Best move: Ne3+ — knight d5→e3, gives check. Opponent replies Kb2 (king c2→b2).
5. Best move: Nxg2 — knight e3→g2, captures rook.

Tactical themes

crushing, endgame, fork, master, pin, sacrifice, very long. The key move Rxg2 wins material.

Position data

FEN: 8/8/8/p2n4/2k5/P5r1/1PKR4/4N3 w - - 13 48

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