Chess Puzzle #0m0Cp — Beginner, White to move, endgame

Position

White: king a5; queen b6; pawn a4. Black: king g4; queen c7; pawn g6. Material is balanced. White to move.

Solution (6 moves)

1. Opponent setup: Qc3+ — queen c7→c3, gives check. Now White to move.
2. Best move: Qb4+ — queen b6→b4, gives check. Opponent replies Qxb4+ (queen c3→b4, captures queen, gives check).
3. Best move: Kxb4 — king a5→b4, captures queen. Opponent replies g5 (pawn g6→g5).
4. Best move: a5 — pawn a4→a5. Opponent replies Kh3 (king g4→h3).
5. Best move: a6 — pawn a5→a6. Opponent replies g4 (pawn g5→g4).
6. Best move: a7 — pawn a6→a7. Opponent replies g3 (pawn g4→g3).
7. Best move: a8=Q — pawn a7→a8, promotes to queen.

Tactical themes

advanced pawn, crushing, endgame, promotion, queen endgame, quiet move, very long. The key move is Qb4+.

Position data

FEN: 8/2q5/1Q4p1/K7/P5k1/8/8/8 b - - 6 69

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