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|Dice game using two dice|
|Material(s) required||2× six-sided dice|
The game uses two standard six-sided dice, which are shaken in a bamboo cup or bowl by a dealer. The cup is then overturned onto the floor. Players then place their wagers on whether the sum total of numbers showing on the two dice will be "Chō" (even) or "Han" (odd). The dealer then removes the cup, displaying the dice. The winners collect their money.
Depending on the situation, the dealer will sometimes act as the house, collecting all losing bets. More often, the players will bet against each other (this requires an equal number of players betting on odd and even) and the house will collect a set percentage of winning bets.
Of the 36 possible outcomes, there are six distinct doubles that result in an even (丁) outcome (e.g., (1,1), (2,2), etc.) and 30 pairings of different numbers: 18 odd sums, and 12 even sums.
The game was a mainstay of the bakuto, itinerant gamblers in old Japan, and is still played by the modern yakuza. In a traditional Chou-Han setting, players sit on a tatami floor. The dealer sits in the formal seiza position and is often shirtless (to prevent accusations of cheating), exposing his elaborate tattoos.
- "Is Gambling an Important Part of Japanese Culture?". Japan Zone. Retrieved 14 April 2021.
- Fletcher, JC (March 10, 2017). "Learning Japanese board game culture from Yakuza 0". Polygon. Retrieved 14 April 2021.