The is a virtual implementation of Rubik's cube. I'm not sure who Rubik is, but his cube rocks. This applet can solve a scrambled Rubik's cube puzzle. I have little information about the author. His name may be Song Li and attened the University of Maryland, Baltimore County. Instructions are available via the about button in the applet.
I originally found this applet at this URL:
http://www.cs.umbc.edu/~sli2/cube/cube.html
That URL seems not to work any more. What I did learn about the author when
the link was good is that his name is Song Li. He is or was a programmer living in San Francisco Bay Area. That's about it, I'm glad I got the a copy of the applet, though.