Solution
38. ♜g1 ♜g7 39. ♛xg7+ ♛xg7 40. ♜xg7+ ♚xg7 41. ♝xc4
The position
This advanced puzzle (rating 2135) asks White to move to find the winning idea. It features these themes: Quiet Move.
It is White to move. Look for the tactic hiding in the position — Quiet Move. 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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