Solution
39. ♚h1 ♛xf5 40. ♜h4+ ♜h7 41. ♜xh7+ ♚xh7 42. ♝e4 ♛xe4+ 43. dxe4
The position
This advanced puzzle (rating 1885) 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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