Solution
36. a6 ♞d6 37. ♚c5 ♞c8 38. ♚xc6 f5 39. ♚xc7
The position
This expert puzzle (rating 2239) asks White to move to find the winning idea. It features these themes: Knight Endgame.
It is White to move. Look for the tactic hiding in the position — 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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