Solution
35. a5 c6 36. a6 ♝b8 37. a7 ♝xa7 38. ♞xa7
The position
This intermediate puzzle (rating 1757) 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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