cubing
n.— «Remember Rubik’s Cube, that devious little puzzle from the 1980s? Well, to paraphrase a movie from that era: It’s back!…Cubing—as it is known—has had a revival, thanks to the growing popularity of “speedcubing” competitions to see who can take a randomly scrambled cube and solve it the fastest. The world record of 9.86 seconds was set last month at a World Cube Association competition in Spain.» —“The search for ‘God’s Number’ in a Rubik’s Cube” by Billy Baker Boston Globe June 25, 2007. (source: Double-Tongued Dictionary)