Chess Puzzle #i6lpG — Expert, White to move, endgame

Position

White: king d7; queen g8; pawn g5. Black: king b2; queen e3; bishop d6; pawn e5. Black is ahead by 3 points of material. White to move.

Solution (5 moves)

1. Opponent setup: Qb3 — queen e3→b3. Now White to move.
2. Best move: Qxb3+ — queen g8→b3, captures queen, gives check. Opponent replies Kxb3 (king b2→b3, captures queen).
3. Best move: Kxd6 — king d7→d6, captures bishop. Opponent replies e4 (pawn e5→e4).
4. Best move: g6 — pawn g5→g6. Opponent replies e3 (pawn e4→e3).
5. Best move: g7 — pawn g6→g7. Opponent replies e2 (pawn e3→e2).
6. Best move: g8=Q+ — pawn g7→g8, promotes to queen, gives check.

Tactical themes

advanced pawn, crushing, endgame, promotion, very long. The key move Qxb3+ captures with check, forcing a response.

Position data

FEN: 6Q1/3K4/3b4/4p1P1/8/4q3/1k6/8 b - - 1 65

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