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

Position

White: king c4; pawns b4/c5/f5/h3. Black: king a4; pawns a6/c6/f6/f7/g5. Black is ahead by 1 point of material. White to move.

Solution (7 moves)

1. Opponent setup: a5 — pawn a6→a5. Now White to move.
2. Best move: b5 — pawn b4→b5. Opponent replies cxb5+ (pawn c6→b5, captures pawn, gives check).
3. Best move: Kd3 — king c4→d3. Opponent replies g4 (pawn g5→g4).
4. Best move: hxg4 — pawn h3→g4, captures pawn. Opponent replies b4 (pawn b5→b4).
5. Best move: c6 — pawn c5→c6. Opponent replies b3 (pawn b4→b3).
6. Best move: c7 — pawn c6→c7. Opponent replies b2 (pawn b3→b2).
7. Best move: Kc2 — king d3→c2. Opponent replies b1=Q+ (pawn b2→b1, promotes to queen, gives check).
8. Best move: Kxb1 — king c2→b1, captures queen.

Tactical themes

advanced pawn, crushing, defensive move, endgame, pawn endgame, very long. The key move is b5.

Position data

FEN: 8/5p2/p1p2p2/2P2Pp1/kPK5/7P/8/8 b - - 0 34

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