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

Position

White: king h2; knight g7; pawns a4/b3/f4/g4. Black: king e7; pawns a6/b5/c5/g6. White is ahead by 3 points of material. Black to move.

Solution (4 moves)

1. Opponent setup: Kg2 — king h2→g2. Now Black to move.
2. Best move: c4 — pawn c5→c4. Opponent replies axb5 (pawn a4→b5, captures pawn).
3. Best move: axb5 — pawn a6→b5, captures pawn. Opponent replies bxc4 (pawn b3→c4, captures pawn).
4. Best move: b4 — pawn b5→b4. Opponent replies f5 (pawn f4→f5).
5. Best move: b3 — pawn b4→b3.

Tactical themes

advantage, endgame, knight endgame, quiet move, very long. The key move is c4.

Position data

FEN: 8/4k1N1/p5p1/1pp5/P4PP1/1P6/7K/8 w - - 0 45

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