Solution
52. ♚xe4 ♚h3 53. d5 g4 54. d6 g3 55. d7
The position
This intermediate puzzle (rating 1692) 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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