Chess Puzzle #0bg6I — Intermediate, White to move, endgame

Position

White: king g5; rook d8; pawn g7. Black: king d7; rook a1; pawns a5/b6/c5/e6. Black is ahead by 3 points of material. White to move.

Solution (3 moves)

1. Opponent setup: Kxd8 — king d7→d8, captures rook. Now White to move.
2. Best move: g8=Q+ — pawn g7→g8, promotes to queen, gives check. Opponent replies Kd7 (king d8→d7).
3. Best move: Qg7+ — queen g8→g7, gives check. Opponent replies Kc6 (king d7→c6).
4. Best move: Qxa1 — queen g7→a1, captures rook.

Tactical themes

advanced pawn, crushing, endgame, exposed king, fork, long, promotion. The key move is g8=Q+.

Position data

FEN: 3R4/3k2P1/1p2p3/p1p3K1/8/8/8/r7 b - - 4 49

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