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

Position

White: king f5; pawns b3/g2. Black: king b2; pawns a7/b7/c6. Black is ahead by 1 point of material. White to move.

Solution (7 moves)

1. Opponent setup: Kxb3 — king b2→b3, captures pawn. Now White to move.
2. Best move: g4 — pawn g2→g4. Opponent replies c5 (pawn c6→c5).
3. Best move: g5 — pawn g4→g5. Opponent replies Kb2 (king b3→b2).
4. Best move: g6 — pawn g5→g6. Opponent replies c4 (pawn c5→c4).
5. Best move: g7 — pawn g6→g7. Opponent replies c3 (pawn c4→c3).
6. Best move: g8=Q — pawn g7→g8, promotes to queen. Opponent replies c2 (pawn c3→c2).
7. Best move: Qg7+ — queen g8→g7, gives check. Opponent replies Kb1 (king b2→b1).
8. Best move: Qxb7+ — queen g7→b7, captures pawn, gives check.

Tactical themes

advanced pawn, crushing, endgame, pawn endgame, promotion, quiet move, very long. The key move Qxb7+ captures with check, forcing a response.

Position data

FEN: 8/pp6/2p5/5K2/8/1P6/1k4P1/8 b - - 1 44

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