Jail Break trick opening puzzle

You could be forgiven for assuming that this latest creating from Jurgen Reiche at Siebenstein-Spiele was another version of the well known Alcatraz puzzle. But beware. It’s definitely not.  No clues to the solution there!

Really nicely made in Germany the clear acrylic in top and bottom give quite an optical illusion that adds another element to the solution.

https://www.mrpuzzle.com.au/jailbreak-puzzle.html