An interesting puzzle I saw on youtube. Once solved the puzzle should fit in the box. I left adequate space for the box to fit,

but if you encounter problems you should be able to solve it if you play around with the hole and contour compensation.

There are three plates in case you don't have an AMS and want to print the box and puzzle in different colour.

The first solution does not use the little square, so it's only 4 pieces.

The second solution uses all pieces.

I designed it this way to give motivation to solve it and to save a bit of filament at the same time :D 

 SPOILERS 

If you don't want to see the full solution, I've added hints under the video.

The solution can be found here : 

Hint : Solve it with the plate side down.

Hint 2 : The little square on the top right corner