Domino-like game pieces

Claim 1

Apparatus for playing a game in which domino-like members are arranged in abutted relationship by matching a visible symbol means on one member with a visible symbol on another member, said apparatus comprising: a set of rectangular domino-like members comprising a first part bearing one of a set of first visible symbol means, which first symbol means each consist of one of a group of numbers represented in a particular manner, and a second part bearing one of a set of second visible symbol means, which second symbol means each consist of one of the same group of numbers represented in a particular manner that is different from the manner of the first symbol means; male and female interlocking mating means provided on said first and second parts, at least one of the parts of each member bearing mating means on all three of its edges, each mating means being individual to the symbol means borne by that part and complementary in shape to the shape of the mating means individual to the symbol of the other set that represents the same number, whereby when the first part of one domino-like member is brought together with the second part of another domino-like meber bearing a visible symbol means that represents the same number that is represented by the visible symbol means on the first part of the first-mentioned dominolike member, the male and female mating means on the said parts cooperate to allow the parts to be placed in abutted relationship and to interlock them in that relationship, whereas if the visible symbol means do not represent the same number the male and female mating means do not cooperate and the abutted relationship of the parts cannot be achieved.