Solution
39… ♛xc2 40. ♛xc2 ♜xc2 41. d7 ♜d2 42. a4 ♚f8
The position
This expert puzzle (rating 2294) asks Black to move to find the winning idea. It features these themes: X-Ray Attack.
It is Black to move. Look for the tactic hiding in the position — X-Ray Attack. 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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