Abstract: A three-dimensional puzzle bearing a shape of a cube comprises cubiform elements joined together so that outer faces of the cubiform elements comprise respective surfaces of the cube. A plurality of n indicia are arranged in rows or columns on each outer face of the cubiform elements. The plurality of indicia comprise a plurality of unique attributes selected from a group of n attributes. A selected surface of the cube may be relatively rotated for moving the associated rows or columns from one surface to another surface. The puzzle is in a solved condition when at least one surface bears indicia wherein at least one row or one column of cubiform elements bears one of each indicia with no duplicate indicia.