Abstract: Each game piece of a set thereof has a surface which includes a predetermined plurality of positions defined at the same location on all of the game pieces, and a predetermined plurality of substantially identical indicia, each indicia being located at a selected one of the plural predetermined positions on the game piece surface to define thereon a pattern of the plural indicia. The location of plural indicia at selected ones of the predetermined positions on each game piece is such that each game piece bears on its surface a pattern of indicia unique from the pattern borne on each other game piece in the set.