Chess Puzzle #KNw0l — Expert, Black to move, endgame

Position

White: king g3; pawns a4/b3/f6. Black: king e6; pawns a5/b6/c5. Material is balanced. Black to move.

Solution (7 moves)

1. Opponent setup: Kf4 — king g3→f4. Now Black to move.
2. Best move: Kxf6 — king e6→f6, captures pawn. Opponent replies Ke3 (king f4→e3).
3. Best move: Ke5 — king f6→e5. Opponent replies Kd3 (king e3→d3).
4. Best move: Kd5 — king e5→d5. Opponent replies Kc3 (king d3→c3).
5. Best move: c4 — pawn c5→c4. Opponent replies bxc4+ (pawn b3→c4, captures pawn, gives check).
6. Best move: Kc5 — king d5→c5. Opponent replies Kd3 (king c3→d3).
7. Best move: Kb4 — king c5→b4. Opponent replies c5 (pawn c4→c5).
8. Best move: bxc5 — pawn b6→c5, captures pawn.

Tactical themes

crushing, endgame, pawn endgame, very long, zugzwang. The key move Kxf6 wins material.

Position data

FEN: 8/8/1p2kP2/p1p5/P7/1P4K1/8/8 w - - 1 47

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