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
French playing cards was created in Stralsund from a Hamburg derivative. It is often erroneously called the Berlin pattern. The crownless queens' hairstyles reflect the Biedermeier fashions of the day. They are usually in decks of 32 cards with the twos to sixes missing since skat, Germany's most popular card game, does not require a full deck. Decks of 36 cards (with the sixes) are for jass and tapp, a game played in Baden-Württemberg. Decks of 52 cards usually include three jokers but Zwickern decks have six jokers. The French-Swiss pattern shares the same descent from the North-German pattern's Hamburg parent but their