Skip-Bo cards which may be played as any number. Alternatively, the 162 cards could be three regular decks of playing cards, including the jokers, with ace to queen corresponding to 1 to 12 and the kings and jokers corresponding to the SKIP-BO cards. Before 1980, the commercial game consisted of four decks of regular playing cards with eight SKIP-BO cards replacing the standard two jokers in each deck. In addition, the aces, twos and threes in the fourth deck were marked SKIP-BO. The remainder of the fourth deck was discarded. Two to four people can play at a time as individuals,
Joker (playing card) cards provide symbols for three jokers: red, black, and white. Many decks do not provide the Joker with a corner index symbol, of those that do, the most common is a solid five-pointed star or a star within a circle. It is also very common for decks to simply use a stylized "J" or the word "JOKER" in the corner. Like sports trading cards, jokers are often prized by collectors. Many unusual jokers are available for purchase online while other collectible jokers are catalogued online for viewing. Some European games have as many as six jokers per pack. Zwicker uses