The guy on the bus commented that he had a friend who taught him the patterns how to solve it like that. -and that compared to his friend, he was slow. @_@;; But according to him, once you know how to solve it, it's easy. Course, he also said he did it as a bit of a nervous habit, just so that he had something to do with his hands.

The thing that was fastinating about watching him do it was that he also played the paino... Long fingered, very limber hands and they just flew over the puzzle. Great fun to watch. (okay, yes, I like watching people's hands... )