The CubeSolver at http://jpbrown.i8.com is a lego robot that solves the 3×3 Rubik’s cube.
I started to think about this problem in about August of 2000. In Jan 2001 fellow Mindstorms forums user ‘agiecco’ announced his intention to work on a robotic solution and, simultaneously, I saw that Rubik’s Cubes were on sale…