Dice acts using sex dice. Dice may have numbers that do not form a counting sequence starting at one. One variation on the standard die is known as the "average" die. These are six-sided dice with sides numbered codice_3, which have the same arithmetic mean as a standard die (3.5 for a single die, 7 for a pair of dice), but have a narrower range of possible values (2 through 5 for one, 4 through 10 for a pair). They are used in some table-top wargames, where a narrower range of numbers is required. Other numbered variations include Sicherman dice and
Miwin's dice / 9² = 1 / 81. Two dice are rolled, chosen at random, one at a time. The pair is scored according to the following rules: This variant provides numbers from 0 – 80 with a probability of 1 / 9² = 1 / 81. Two dice are rolled, chosen at random, one at a time. The score is obtained according to the following rules: Examples: Miwin's dice Miwin's Dice are a set of nontransitive dice invented in 1975 by the physicist Michael Winkelmann. They consist of three different dice with faces bearing numbers from 1 to 9; opposite faces