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
Billy Ward and his Dominoes hear Jackie Wilson and the Dominoes in Las Vegas in 1956 and was so impressed with Wilson's singing that he went back to Sun Studios and cut the Million Dollar Quartet's version of "Don't Be Cruel". Presley introduced the song by saying how Wilson sang it much better and then proceeded to do an impersonation of the much slower Dominoes version, backed by Johnny Cash, Carl Perkins and Jerry Lee Lewis. In late 1957, Wilson left for a solo career and was replaced by Gene Mumford of the Larks, after which the group signed a contract with Liberty Records. They