Chess Puzzle #GBQmb — Advanced, White to move, endgame

Position

White: king b6; pawns b3/c2. Black: king d5; pawns b4/c5. Material is balanced. White to move.

Solution (4 moves)

1. Opponent setup: Kd4 — king d5→d4. Now White to move.
2. Best move: Kc6 — king b6→c6. Opponent replies c4 (pawn c5→c4).
3. Best move: Kb5 — king c6→b5. Opponent replies cxb3 (pawn c4→b3, captures pawn).
4. Best move: cxb3 — pawn c2→b3, captures pawn. Opponent replies Kc3 (king d4→c3).
5. Best move: Ka4 — king b5→a4.

Tactical themes

crushing, endgame, pawn endgame, very long, zugzwang. The key move is Kc6.

Position data

FEN: 8/8/1K6/2pk4/1p6/1P6/2P5/8 b - - 2 64

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