Solution
51… ♜f3 52. ♜xf3 ♚xf3
The position
This easy puzzle (rating 1384) asks Black to move to find the winning idea. It features these themes: Rook Endgame.
It is Black to move. Look for the tactic hiding in the position — Rook Endgame. Drag a piece on the board to play your move; the puzzle will tell you if you found the best continuation.
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