Solution
58. e6+ ♚e7 59. exd7 ♚xd7 60. f6
The position
This advanced puzzle (rating 2163) asks White to move to find the winning idea. It features these themes: Fork, Knight Endgame.
It is White to move. Look for the tactic hiding in the position — Fork, Knight Endgame. 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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