Chess Puzzle #SxWan — Expert, Black to move, endgame

Position

White: king e1; rook b5; pawn a5. Black: king e3; rook a2; pawn f4. Material is balanced. Black to move.

Solution (3 moves)

1. Opponent setup: Kf1 — king e1→f1. Now Black to move.
2. Best move: Ra1+ — rook a2→a1, gives check. Opponent replies Kg2 (king f1→g2).
3. Best move: f3+ — pawn f4→f3, gives check. Opponent replies Kg3 (king g2→g3).
4. Best move: Rg1+ — rook a1→g1, gives check.

Tactical themes

crushing, endgame, exposed king, long, rook endgame. The key move is Ra1+.

Position data

FEN: 8/8/8/PR6/5p2/4k3/r7/4K3 w - - 3 71

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