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

Position

White: king b4; pawns a7/b6/c6. Black: king a8; bishop f1; pawn h4. Black is ahead by 1 point of material. White to move.

Solution (7 moves)

1. Opponent setup: Bg2 — bishop f1→g2. Now White to move.
2. Best move: Kc5 — king b4→c5. Opponent replies h3 (pawn h4→h3).
3. Best move: Kd6 — king c5→d6. Opponent replies h2 (pawn h3→h2).
4. Best move: b7+ — pawn b6→b7, gives check. Opponent replies Kxa7 (king a8→a7, captures pawn).
5. Best move: Kc7 — king d6→c7. Opponent replies Ka6 (king a7→a6).
6. Best move: b8=Q — pawn b7→b8, promotes to queen. Opponent replies Ka5 (king a6→a5).
7. Best move: Qb6+ — queen b8→b6, gives check. Opponent replies Ka4 (king a5→a4).
8. Best move: Qd4+ — queen b6→d4, gives check.

Tactical themes

advanced pawn, bishop endgame, crushing, endgame, exposed king, promotion, very long. The key move is Kc5.

Position data

FEN: k7/P7/1PP5/8/1K5p/8/8/5b2 b - - 0 49

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