Made in Japan, undated.

(Cardboard box 1.6" x 1.4" x 5.5" with 4 1+3/8" wood cubes.)

In the theme ofInstant Insanity, arrange the cubes in a row so that all four numbers appear on each side. Above is the solution and by numbering the cubes 1 to 4 going from left to right, the corresponding solution graph (unlike instant Insanity there are no colors, numbers are used to label both the cubes and the faces of the cubes).