Dominoes spots from one to six are generally arranged as they are on six-sided dice, but because blank ends having no spots are used, seven faces are possible, allowing 28 unique pieces in a double-six set. However, this is a relatively small number especially when playing with more than four people, so many domino sets are "extended" by introducing ends with greater numbers of spots, which increases the number of unique combinations of ends and thus of pieces. Each progressively larger set increases the maximum number of pips on an end by three, so the common extended sets are double-nine, double-12,
Chinese dominoes as Hunan. The name suggests that it is or became the default game played with dominoes in those regions. It is a trick-taking game similar to Tien Gow but has been simplified. In single-tile tricks, the civil and military suits have been merged into a single suit. In double-tile tricks, there is a new ranking order similar to Pai Gow. Triple-tile and quadruple-tile tricks are not allowed as in older versions of Tien Gow. Scoring has been simplified to number of stacks won. Chinese dominoes Chinese dominoes are used in several tile-based games, namely, Tien Gow, Pai Gow, Tiu U