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Poker dice

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A set of poker dice owned by a member of the Royal Indian Army Service Corps during the Second World War
A set of poker dice and a dice cup

Poker dice are dice which, instead of having number pips, have representations of playing cards upon them. Poker dice have six sides, one each of an Ace, King, Queen, Jack, 10, and 9, and are used to form a poker hand.

Each variety of poker dice varies slightly in regard to suits, though the ace of spades is almost universally represented. 9♣ and 10♦ are frequently found, while face cards are traditionally represented not by suit, but instead by color: red for kings, green for queens and blue for jacks. Manufacturers have not standardized the colors of the face sides. The game can also be played with ordinary dice.

As a game

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Three sets of poker dice

The classic poker dice game is played with 5 dice and two or more players. Each player has a total of 3 rolls and the ability to hold dice in between rolls. After the three rolls, the best hand wins.

In most variations, a straight only counts as a Bust (high-card). A Straight is less probable than a Full House, so, if counted, it should rank above a Full House, though tradition usually ranks it below Full House, as in card poker. Neither a "flush" nor a "straight flush" is a possible hand, due to the lack of suits on the dice.[1][2]

In some rules, only a straight to a King is called a Straight, while a straight to an Ace is called (somewhat incorrectly) a Flush. Each one has an exact probability of 120 / 7776. Under these rules, a Straight beats a Full House (unlike in card poker, but correctly reflecting its probability) but does not beat a Four of a Kind (incorrectly reflecting its lower probability). A Flush beats a Four of a Kind (unlike in card poker, but correctly reflecting its lower probability).

Probabilities

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The poker dice hand rankings and the corresponding probabilities of rolling that hand are as follows[3][4][5][6] (not sorted by probability but from highest to lowest ranking):

Hand Exact probability Percentage 1 in ... Example
Five of a kind
 6 / 7776 0.08 1296
J J J J J
Four of a kind
 150 / 7776 1.93 51.8
10 10 10 10 A
Full house
 300 / 7776 3.86 25.9
K K K 9 9
Straight
 240 / 7776 3.09 32.4
A K Q J 10
Three of a kind
 1200 / 7776 15.43 6.5
9 9 9 K J
Two pair
 1800 / 7776 23.15 4.3
Q Q 9 9 A
One pair
 3600 / 7776 46.30 2.2
10 10 K Q 9
Bust (high card; no pair, no straight)
 480 / 7776[a] 6.17 16.2
A K Q J 9
  1. ^ Busts have much lower probability than in card poker, because there are only 6 values instead of 13, making pairs and straights much more likely than with cards. In poker dice there are in fact only four possible bust hands: [A K Q J 9], [A K Q 10 9], [A K J 10 9], and [A Q J 10 9]; both other no-pair hands (i.e., in which either the A or the 9 are missing) are straights. Consequently, in some variants of the rules, straights are counted as busts.[7]

Variants

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Marlboro once marketed a set of octahedral poker dice that included suits; each die had slightly different numberings, ranging from 7 up to ace. A similar set is currently manufactured by Koplow Games.[8][9]

In 1974, Aurora produced a set of 12-sided poker dice called "Jimmy the Greek Odds Maker Poker Dice"[10] and in 2000, Aurora/Rex Games produced a similar set under the name "Royal Poker Dice".[11] The sets featured five 12-sided dice allowing for all 52 playing cards to be represented. The remaining 8 faces featured stars and acted as wild cards allowing for every possible poker hand to be rolled.

A variant of Liar's dice is commonly used with Poker dice. A two player game, players roll their own set of Poker dice behind a screen, and bid and call based on Poker dice hands.

See also

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References

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  1. ^ Berger, A. J.; Bruning, Nancy (1979). Lady Luck's Companion: How to Play ... how to Enjoy ... how to Bet ... how to Win (illustrated ed.). Harper & Row. p. 57. ISBN 978-0-06-014696-2.
  2. ^ Bewersdorff, Jörg (2004). Luck, Logic, and White Lies: The Mathematics of Games. CRC Press. p. 22. ISBN 978-1-000-06531-2. Extract of page 22
  3. ^ Deep, Ronald (2006), Probability and statistics with integrated software routines, Elsevier Inc., ISBN 0-12-369463-9 Chapter 1 p 42
  4. ^ Fred Schuh (2015). The Master Book of Mathematical Recreations (reprinted ed.). Courier Dover Publications. p. 188. ISBN 978-0-486-80895-6. Extract of page 188
  5. ^ David Stirzaker (1999). Probability and Random Variables: A Beginner's Guide (illustrated, reprinted ed.). Cambridge University Press. p. 109. ISBN 978-0-521-64445-7. Extract of page 109
  6. ^ Bărboianu, Cătălin (2006), Probability Guide to Gambling: The Mathematics of Dice, Slots, oulette, Baccarat, Blackjack, Poker, Lottery and Sport Bets, INFAROM Publishing, p. 224, ISBN 973-87520-3-5 Extract of page 224
  7. ^ Arneson, Erik (2012). "The Complete Rules for the Dice Game Poker Dice". About.com. New York Times Company. "Board / Card Games" subsite. Archived from the original on 2014-04-12.{{cite web}}: CS1 maint: unfit URL (link)
  8. ^ "Koplow Games". Archived from the original on 2014-04-19. Retrieved 2014-04-18.
  9. ^ 8-sided poker dice on BoardGameGeek.com
  10. ^ Jimmy the Greek Odds Maker Poker Dice on BoardGameGeek.com
  11. ^ Royal Poker Dice on BoardGameGeek.com
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