Solution
36. ♛a7+ ♛e7 37. ♜d7 ♜b1+ 38. ♚f2 ♛xd7 39. ♛xd7+
The position
This intermediate puzzle (rating 1467) asks White to move to find the winning idea. It features these themes: Pin.
It is White 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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