Abstract: In a pack of cards for playing a game, each of the cards (10) has on it a first marking (11), a second marking (12) and a third marking (13), each of the said markings being separately selected from at least a first variant, a second variant and a third variant, the variants of each of the said markings being distinguishable from the variants of the said markings and the variants being ranked in a cyclic order of superiority. At least some of the cards have different permutations of variants for the said markings from other cards. The pack is used in playing various games involving the variants of the markings and selecting non-matching pairs according to certain rules.