Abstract: A puzzle device includes a support structure and a plurality of polyhedrons, preferably cubes of equal size. The support structure, which may be a rectangular parallelepiped in shape, has a plurality of compartments located at its outer surface, such as at the four vertical sides, of the support structure. The compartments are adjacent one another and are open and unobstructed at the outer surface of the support structure to permit insertion into and removal of the cubes. On inserting the cubes into an appropriate compartment, the outer faces of the cubes together form at least a portion of each of the outer four vertical faces of the structure. Each of the cubes has a plurality of faces with different visual characteristics. By placing the cubes in an appropriate compartment and with the appropriate face outermost, the outer faces of the cubes together form a pre-determined visual effect, such as a picture or a pattern, at the outer surface of the structure.

Abstract: A puzzle device includes a plurality of cubes. Each cube has visual matter on a plurality of its faces. The cubes are arrangeable at least twice in a pre-determined way into a rectangular parallelepiped with the cubes in adjacency and with their exposed faces forming at least five of the six sides of the parallelepiped. Each cube is unique, with respect to its visual matter, with respect to all other cubes, and the visual format on the cubes is such that in each pre-determined arrangement, the exposed faces of the cubes together form a pre-determined visual format. For example, a set of cubes is arrangeable in three different ways into a parallelepiped thus providing a total of fifteen different visual formats, one on each of the four sides and top of the parallelepiped formed by arrangement of the cubes.