Chess Puzzle #LWBqb — Expert, White to move, endgame

Position

White: king a2; pawns a3/g4/h3. Black: king a4; pawns a5/g5/g6/h6. Black is ahead by 1 point of material. White to move.

Solution (6 moves)

1. Opponent setup: h5 — pawn h6→h5. Now White to move.
2. Best move: Kb2 — king a2→b2. Opponent replies h4 (pawn h5→h4).
3. Best move: Ka2 — king b2→a2. Opponent replies Kb5 (king a4→b5).
4. Best move: Kb3 — king a2→b3. Opponent replies a4+ (pawn a5→a4, gives check).
5. Best move: Kb2 — king b3→b2. Opponent replies Kc6 (king b5→c6).
6. Best move: Kc2 — king b2→c2. Opponent replies Kd6 (king c6→d6).
7. Best move: Kd2 — king c2→d2.

Tactical themes

defensive move, endgame, equality, pawn endgame, very long, zugzwang. The key move is Kb2.

Position data

FEN: 8/8/6pp/p5p1/k5P1/P6P/K7/8 b - - 1 49

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