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 a set of Miwin's dice. There are even more game variants listed on Winkelmann's website. Solitaire games and games for up to nine players have been developed. Games are appropriate for players over 6 years of age. Some games require a game board; playing time varies from 5 to 60 minutes. Two dice are rolled, chosen at random, one at a time. Each pair is scored by multiplying the first by 9 and subtracting the second from the result: 1st throw × 9 − 2nd throw. Examples: This variant provides numbers from 0 – 80 with a probability of 1