If you thought it was challenging solving a normal Rubik’s Cube, then you’re really going to have issues with this one. This homemade cube is all of 10mm or 0.39 inches. It was made and solved by Evgenly Grigoriev. The tiny cube is 2mm smaller than his previous design, so he’s only getting better at creating these tiny working cubes. It would take me quite a bit of effort to solve your average cube, but this one would take quite a bit more concentration. Sadly if you’d like a mini you’ll have to make your own. It doesn’t appear that this is up for purchase. At least you can see the man solving it in action by following this link.