Chess Puzzle #cHC4r — Master, White to move, endgame

Position

White: king c4; pawns a6/b5/c6. Black: king b6; knight e6. Material is balanced. White to move.

Solution (3 moves)

1. Opponent setup: Nd8 — knight e6→d8. Now White to move.
2. Best move: Kd5 — king c4→d5. Opponent replies Kxb5 (king b6→b5, captures pawn).
3. Best move: a7 — pawn a6→a7. Opponent replies Nxc6 (knight d8→c6, captures pawn).
4. Best move: a8=Q — pawn a7→a8, promotes to queen.

Tactical themes

advanced pawn, crushing, endgame, knight endgame, long, promotion. The key move is Kd5.

Position data

FEN: 8/8/PkP1n3/1P6/2K5/8/8/8 b - - 4 60

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