I never had one, but anytime I tried on someone else's I couldn't do it.
Sleightful
Most I was ever able to complete was one side. After that I didn't try to get any more for fear of ruining the perfection of that one side. That and after watching Hellraiser I developed an innate fear of puzzle boxes.
BTG
i've done it. but that was when i was like 10
Chris Crossland
Only two sides for me. In middle school I knew a kid that could finish it in a couple minutes every time.
