Concentration (game) as an educational game. Any deck of playing cards may be used, although there are also commercial sets of cards with images. The rules given here are for a standard deck of 52 cards, which are normally laid face down in four rows of 13 cards each. The two jokers may be included for a total of six rows of nine cards each. Additional packs can be used for added interest. Standard rules need not be followed: the cards can be spread out anywhere, such as all around a room. In turn, each player chooses two cards and turns them
Suit (cards) six-suited (78-card) deck of poker sized playing cards is the Empire Deck, introduced in 1990. It has three red suits and three black suits, introducing crowns in red and anchors in black as in the dice game Crown and Anchor. "Deck6" is a six-suited deck with three red suits (hearts, diamonds, shields), three black suits (clubs, spades, cups) and three jokers (total 81 cards). The K6T deck is a six-suited (120-card) deck of poker sized playing cards. The traditional suits are colored (green clubs and orange diamonds) and are completed with blue moons and purple stars. Each suit has 20