Abstract: Two sets of rectangular shaped tiles in the form of dominoes are provided. Each set of tiles are divided in half to form perfect squares. Each square of the first set are provided with separate identifiable indicia such as color or touch. One square of each tile of the second set of tiles contain a third indicia different than the first two squares on the first set of tiles. The second square on each of the second set of tiles contain the same indicia as the first square on the first set of tiles. The tiles are placed on a substantially flat surface alternately between the first set and the second set with the object being the first to create a pattern of four or more touching similar squares on either a rank, a file or a diagonal.