Solution
52. ♚xd4 ♚c8 53. ♚c5 ♚d7 54. d4 ♚c7 55. d5 cxd5 56. ♚xd5
The position
This intermediate puzzle (rating 1404) 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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