Chess Puzzle #eyRW1 — Expert, White to move, endgame

Position

White: king g1; rook b3; pawn b7. Black: king f3; rook e2; pawns e3/g5. Black is ahead by 1 point of material. White to move.

Solution (3 moves)

1. Opponent setup: g4 — pawn g5→g4. Now White to move.
2. Best move: Rb1 — rook b3→b1. Opponent replies Rg2+ (rook e2→g2, gives check).
3. Best move: Kh1 — king g1→h1. Opponent replies g3 (pawn g4→g3).
4. Best move: b8=Q — pawn b7→b8, promotes to queen.

Tactical themes

advanced pawn, crushing, endgame, long, promotion, quiet move, rook endgame. The key move is Rb1.

Position data

FEN: 8/1P6/8/6p1/8/1R2pk2/4r3/6K1 b - - 0 48

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