Puzzle fans and '80s fanatics, listen up. On Sunday the San Francisco Open 2009 Rubik's Cube Competition goes down at the Exploratorium. The competition is open to competitors of all skill levels, and anyone who knows how to solve a cube (i..e, match up all the pretty colors) is encouraged to attend, compete. But even if you can't solve the famed puzzle, you should still stop by and watch as competitors try breaking world records.

The main events sound daunting yet thrilling: 3x3x3 Speedsolve, 3x3x3 One-Handed, 3x3x3 Blindfolded, 4x4x4 Speedsolve, and 5x5x5 Speedsolve, And the side competitions include such Rubik's Cube derivatives as Rubik's Magic, Master Magic, 4x4x4 Blindfolded, 5x5x5 Blindfolded, 3x3x3 Multiple Blindfolded, Square-1, Rubik's Clock, and Pyraminx. Whew. (To check out the competition schedule, go here. To register to compete, right here.)

Oh, and competitors should bring their own cubes to compete with. Or bring any extras to share.

What: San Francisco Open 2009 Rubik's Cube Competition
When: Sunday, January 18, 2009
Where: Exploratorium at the Palace of Fine Arts (3601 Lyon)
Time: 10:30 a.m.-4 p.m.