My name is Nan Ma. On many online forums I use the name "schuma" because I am a big fan of Michael Schumacher.
I am enthusastic about all the puzzles similar to the Rubik's Cube. They are called Twisty Puzzles on the Twistypuzzles forum. Duh. I have solved
I gave lectures on how to use group theory to construct algorithms to solve the puzzles listed above in UC Berkeley. Here is a recorded video.
I am an average speed cuber. My personal best is super-20.