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
Jokers in Solitaire referred to as "Joker Bombs". When a Joker is dealt into a column, the entire column is reshuffled into the stock and that particular Joker is removed from the game. This leaves an empty foundation slot and greatly increases the win rate. Jokers in Solitaire Generally, the Joker is left out of solitaire card games as in many others of its type. But there are variations of solitaire games where a Joker does take part, most often as a wild card. When played in a game of Forty Thieves, the Joker is placed on the foundations while the natural card