Fan Tan, also known as Sevens, is a traditional Chinese gambling game that is played with a set of small objects, such as beans or buttons. The game is played on a table with a layout that includes a central area for betting and four areas marked with the numbers 1, 2, 3, and 4.
To begin the game, a number of objects are placed in the central area, and players place their bets on the number they think will be left after the objects are counted off in a particular way. The dealer then removes the objects one by one, placing them in a pile, until there are four objects remaining. The number on which the final object is placed is the winning number.
There are several variations of the game, and the specific rules may vary depending on the version being played. In some versions, the dealer may use a stick to count off the objects instead of picking them up with their hand. In others, the dealer may use a cup to hold the objects and shake them before counting them off.