Some of you math or logic whizzes might like to take a crack at moving furniture in a very challenging way. I gave it my best shot more than once, and it stumped me good, until I finally worked it with the solution in front of me. But I couldn’t remember it. When I tried to work it again, it still stumped me. But it really can be solved. Here’s the link to the version you can work online. It’s very cool.
Good luck! Here’s an image of the older original.
they kept me entertained during my most formative years and beyond 