Solution
63… ♚xf7 64. ♚e3 ♚g6 65. ♚f2 ♚h5 66. ♚g3 ♚g5
The position
This advanced puzzle (rating 2074) asks Black to move to find the winning idea. It features these themes: Zugzwang.
It is Black 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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