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

Position

White: king g1; queen c8; rook d1; pawns f2/g2. Black: king g7; queen b5; knight b3; pawns a3/a6/c4/e5. Material is balanced. White to move.

Solution (3 moves)

1. Opponent setup: a2 — pawn a3→a2. Now White to move.
2. Best move: Qg4+ — queen c8→g4, gives check. Opponent replies Kf7 (king g7→f7).
3. Best move: Rd6 — rook d1→d6. Opponent replies a1=Q+ (pawn a2→a1, promotes to queen, gives check).
4. Best move: Kh2 — king g1→h2.

Tactical themes

crushing, defensive move, endgame, long. The key move is Qg4+.

Position data

FEN: 2Q5/6k1/p7/1q2p3/2p5/pn6/5PP1/3R2K1 b - - 1 36

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