Dominoes domino sets commercially available are double six (with 28 tiles) and double nine (with 55 tiles). Larger sets exist and are popular for games involving several players or for players looking for long domino games. The number of tiles in a set has the formula formula_1 for a double-"n" set. The most popular type of play are layout games, which fall into two main categories, blocking games and scoring games. The most basic domino variant is for two players and requires a double-six set. The 28 tiles are shuffled face down and form the "stock" or "boneyard". Each player draws
Dominoes of Emperor Xiaozong of Song (r. 1162–1189). Andrew Lo asserts that Zhou Mi meant dominoes when referring to "pupai", since the Ming author Lu Rong (1436–1494) explicitly defined "pupai" as dominoes (in regard to a story of a suitor who won a maiden's hand by drawing out four winning "pupai" from a set). The earliest known manual written about dominoes is the "(Manual of the Xuanhe Period)" written by Qu You (1341–1437), but some Chinese scholars believe this manual is a forgery from a later time. In the "Encyclopedia of a Myriad of Treasures", Zhang Pu (1602–1641) described the game