Hanayama L'Oeuf cast metal mechanical puzzle

From puzzle maker Hanayama is this intriguing egg-shaped cast puzzle. (L'Oeuf is French for "The egg".) The two plates each have a pin that moves within a track on the opposite plate goal is to separate the two metal pieces and then put them back together. While it may seem straightforward, the puzzle is rated at "intermediate" difficulty, so perhaps there is more to it that it might seem?

If you are interested, here is where you can get the Hanayama L'Oeuf cast metal puzzle.

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