+---------+---------+---------+---------+ | \ 6| |2 / | 3/1| | \ . . / | . | | \ | | / | / | |6 \ .3 . / 2| . | +---------+---------+---------+ - --- - + | | | / | | | | | . | | | | | / | | | | | . | | +---------+---------+---------+---------+ | / | | | | | . | | | | | / | | | | | . | | | | + - --- - +---------+---------+---------+ |5 / | | . . \ | | / | | \ | \ | | / | | . . \ | | / 5| 4 | 4\ | \1| +---------+---------+---------+---------+Short instructions:
A---------B---------C---------D---------E | \ | | / | / | | \ . . / | . | | \ | | / | / | | \ . . / | . | F---------G---------H---------I - --- - J | | | / | | | | | . | | | | | / | | | | | . | | K---------L---------M---------N---------O | / | | | | | . | | | | | / | | | | | . | | | | P - --- - Q---------R---------S---------T | / | | . . \ | | / | | \ | \ | | / | | . . \ | | / | | \ | \ | U---------V---------W---------X---------Y
Five sides of the cube are now in place, and the point Y is pointing towards you. (V and X should be touching each other now.)
It was published in the book Origami for the Conoisseur, where it can be found on page 58. It says that it was independently invented by Kazou Haga and Kunihiko Kasahara.
Jeannine Mosely told me that she invented it in 1974 on her own.
+---------A-------------------L---------+ | / \ / | \ | | . . / | . | | / \ / | \ | | . . / | . | I-------------------H | G | \ / \ | . | | \ / \ | / | | \ / \ | . | | \ / \ | / | | B F | | / | \ / \ | | . | \ / \ | | / | \ / \ | | . | \ / \ | C | D-------------------K | . | / . . | | \ | / \ / | | . | / . . | | \ | / \ / | +---------J-------------------E---------+Now fold, at the same time, A to B, C to D, E to F, and G to H for both sheets. You will get two semi-boxes where the points I, J, K, and L stick out.
The two semi-boxes can be put together, such that the points I, J, K, and L of the one semi-box go inside the other semi-box touching the points A, C, E, and G.
As an alternative, you can also join one of the above with the following:
+---------A---------+---------B---------+ | / \ . / \ | | / \ | / \ | | / \ . / \ | | / \ | / \ | C x D | \ / \ / | | \ / \ / | | \ / \ / | | \ / \ / | +-.-.-.-.-x x-.-.-.-.-+ | / \ / \ | | / \ / \ | | / \ / \ | | / \ / \ | E x F | \ / | \ / | | \ / . \ / | | \ / | \ / | | \ / . \ / | +---------G---------+---------H---------+The first tricky thing about this fold is to get the diagonal folds at the right place. Now fold A to B, C to E, D to F, and G to H. This will give you a box with one open side. The second thing is to make this one join with a paper folded according to the previous diagram. There is only one way to do it, but I cannot describe it accurately.