In explaining the assembly of the puzzles, take the panels and simply interlock them on the sides. If you notice from the last photo there are little squares all along the outside of each panel. That’s how they link. The squares help putting the individual pieces together because you know the square sides form the exteriors of the panels, so you can orient the pieces.
The hard part is figuring out where each panel goes! Luckily the bottom of the box shows multiple views in color. And assembly is my son’s favorite part so that’s when he pitches in to help. His brain is much more engineer like than mine is. I can do it but he’s so much faster! Also if you notice the puzzles are hollow inside!! They look cool upside down!🙃
Hopefully this helps those of you trying to figure these puzzles out. But you can keep thinking I’m a genius if you want to! 😁🤪