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

Position

White: king e2; rook b1; pawns f6/g5. Black: king c3; rook g4; pawn b2. White is ahead by 1 point of material. Black to move.

Solution (4 moves)

1. Opponent setup: Rf1 — rook b1→f1. Now Black to move.
2. Best move: Rxg5 — rook g4→g5, captures pawn. Opponent replies Ke3 (king e2→e3).
3. Best move: Rg6 — rook g5→g6. Opponent replies Ke4 (king e3→e4).
4. Best move: Rxf6 — rook g6→f6, captures pawn. Opponent replies Rxf6 (rook f1→f6, captures rook).
5. Best move: b1=Q+ — pawn b2→b1, promotes to queen, gives check.

Tactical themes

advanced pawn, crushing, deflection, endgame, promotion, rook endgame, very long. The key move Rxg5 wins material.

Position data

FEN: 8/8/5P2/6P1/6r1/2k5/1p2K3/1R6 w - - 1 55

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