Chess Puzzle #KZXfW — Master, Black to move, endgame

Position

White: king f2; rook b6; pawns b5/g3. Black: king f5; rook b4; pawns g5/h5. Material is balanced. Black to move.

Solution (3 moves)

1. Opponent setup: Kf3 — king f2→f3. Now Black to move.
2. Best move: Rb3+ — rook b4→b3, gives check. Opponent replies Kf2 (king f3→f2).
3. Best move: Kg4 — king f5→g4. Opponent replies Rg6 (rook b6→g6).
4. Best move: Rf3+ — rook b3→f3, gives check.

Tactical themes

advantage, endgame, long, rook endgame. The key move is Rb3+.

Position data

FEN: 8/8/1R6/1P3kpp/1r6/6P1/5K2/8 w - - 0 48

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