The diagrams above show the three
solutions to the puzzle - in seven, six and five folds, respectively.
Solutions 1 and 2 were found by Serhiy Grabarchuk.
Solution 3 was discovered by Kozy Kitajima and Hiroshi Yamamoto. They
additionally developed a dozen of similar patterns to get by folding a
single square piece of Origami paper. These puzzles are presented by
Tom Hull at the
OrigamiUSA web site in the Fun Stuff
Try them... and enjoy!.