Rubik's Cube
Posted: Mon Jun 09, 2003 12:45 am
Thing the standard 3-D ones are easy. Try 4-D.
http://www.superliminal.com/cube/cube.htm
There's only 1.75E120 possible combinations
http://www.superliminal.com/cube/cube.htm
There's only 1.75E120 possible combinations