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Choboichi

From Wikipedia, the free encyclopedia

Choboichi (チョボイチ, Choboichi, also written as チョボ一, ちょぼいち, or 樗蒲一) is a simple gambling game played in Japan using one covered die. The dealer shakes a six-sided die in a cup or rice bowl and then places it upside down, concealing the rolled value; after the players wager for their prediction of what the value will be, the dealer reveals the die by lifting the cup.

Gameplay

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Choboichi game board
1 2 3
4 5 6

Players wager by placing money on one of six spaces on the game board. Winning wagers are paid out typically at four-to-one (e.g., a player who places a $10 bet on a winning space would be paid $40) while the dealer keeps the losing bets.[1] The winning payout may vary between 2:1 and 5:1.

The house edge is computed using the relative probabilities of winning and losing along with the winning multiplier, M:

The house edge varies from 50% (for a multiplier of 2) to 0% (for a multiplier of 5), with the most common multiplier of 4 resulting in a house edge of 16.7%.

There are multiple variations using up to five dice.[1]

History

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The game was noted to be so popular by the 18th century that an entire strip of gambling sheds one ri long, 3.75 km (2.33 mi), was dedicated to it.[2]

References

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  1. ^ a b Arai, Satoshi. "さいころ賭博" [Gambling games using dice]. dice.saloon.jp (in Japanese). Retrieved 25 December 2024.
  2. ^ Schreiber, Mark (April 7, 2002). "A dicey history". The Japan Times. Retrieved 24 December 2024.
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