Sunday, December 24, 2006

Wonderful Illusions ---13 or 12 ?? --- Where does the extra man go ??


Richard said...

"Where does the extra man go??"
Why, two steps to his left, Arthur.

There's a group of two and a group of three exchanging sides. The group of two moves three places sideways each time, while the larger group moves only two. This alternately creates and fills the space in the back row.

Richard said...

Arthur, the above comment pertains to the back row, which alternates between five figures and four figures with a blank space. (You probably know this, so forgive me for being so crass as to "explain the joke.")