Half Hour

Half Hour. The half hour puzzle is a Stewart Coffin classic, and if you don't have a copy in your collection you really should. Although this puzzle is fun and approachable by anyone, it's far from simple. The pieces were deliberately chosen to be as tricky as possible, and there is only one solution. Mr. Coffin has this to say about it: "The six-piece version of the 3 x 3 x 3 cube will be considered first. For- Half Hour.