This is a variation from my first labyrinth puzzlebox with the maze moved to the inside and a more complex maze.
Once put together the maze is no longer visible, making it quite challenging to open (or close).

Here is the other version with a medium difficulty.

[https://makerworld.com/en/models/1056232#profileId-1043791](https://makerworld.com/en/models/1056232#profileId-1043791)

And as always enjoy it!

Edit: 04.02.2025:
It was requested to add  a illustration of the Maze. I kind of struggled getting it on a 2D plane, so this is the best i could do: