Solution
51. fxe6 ♚g7 52. ♚f5 ♚f8 53. ♚f6 ♚e8 54. e7 ♚d7 55. ♚f7
The position
This easy puzzle (rating 1090) asks White to move to find the winning idea. It features these themes: Zugzwang.
It is White to move. Look for the tactic hiding in the position — Zugzwang. 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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