Friday, October 9, 2009
Double Trouble - by the legendary Larry Nichols - who invented the first 2x2x2 Rubik's Cube. The Grabarchuk Framily is hosting this little gem. It's an online puzzle that resembles the 15 puzzle. Here's the catch: you must shift 2 tiles at a time.
It would be great to have a mechanical version of this. But this online version is great anyway.