<P> Mexican Train is a game played with dominoes . The object of the game is for a player to play all the dominoes from his or her hand onto one or more chains, or "trains", emanating from a central hub or "station". The game's most popular name comes from a special optional train that belongs to all players . However, the game can be played without the Mexican Train; such variants are generally called "Private Trains" or "Domino Trains". It is related to the game Chicken Foot . </P> <P> A double - twelve set of dominoes is marketed as the standard for Mexican Train, and accommodates up to 8 players . Other sets are commonly used as well . The following alternate sets are common, depending on the number of people playing: </P> <Ul> <Li> Double - Six (2 players) </Li> <Li> Double - Nine (2--4 players) </Li> <Li> Double - Twelve (5--8 players) </Li> <Li> Double - Fifteen (9--12 players) </Li> <Li> Double - Eighteen (13 + players) </Li> </Ul>

How many dominoes are in a mexican train set