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

Position

White: king g6; pawns g7/h6. Black: king b3; bishop c4; pawns a4/c6. Black is ahead by 3 points of material. White to move.

Solution (3 moves)

1. Opponent setup: a3 — pawn a4→a3. Now White to move.
2. Best move: h7 — pawn h6→h7. Opponent replies a2 (pawn a3→a2).
3. Best move: g8=Q — pawn g7→g8, promotes to queen. Opponent replies a1=Q (pawn a2→a1, promotes to queen).
4. Best move: Qb8+ — queen g8→b8, gives check.

Tactical themes

advanced pawn, bishop endgame, crushing, endgame, long, promotion. The key move is h7.

Position data

FEN: 8/6P1/2p3KP/8/p1b5/1k6/8/8 b - - 0 45

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