Solution
41… ♜f1+ 42. ♛g1 ♜xg1+
The position
This easy puzzle (rating 1163) asks Black to move to find the winning idea. It features these themes: Pin.
It is Black to move. Look for the tactic hiding in the position — Pin. 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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