Sevens (card game) from 1 to 20 in four (in some editions three) colours. It is marketed in Germany by Ravensburger. In this game three fourths of the cards remain in the stock, players can play as many cards as they want in one move, and players who cannot play at least one card must draw up to three cards. The score of a card is its face value. The rulebook distributed with the game describes two variants (one permitting each colour to be started with 10 or 12 instead of 11, and one that is similar to the French card game "Domino")
Card game formal settings are free to implement agreed-upon supplemental or substitute rules at will. An infraction is any action which is against the rules of the game, such as playing a card when it is not one's turn to play or the accidental exposure of a card, informally known as "bleeding." In many official sets of rules for card games, the rules specifying the penalties for various infractions occupy more pages than the rules specifying how to play correctly. This is tedious, but necessary for games that are played seriously. Players who intend to play a card game at a high