Dominoes, or dominos, is a game played using rectangular tiles known as "dominoes." A collection of these gaming pieces forms a domino set, sometimes referred to as a deck or pack. The classic Sino-European domino set comprises 28 dominoes. Muggins, also called All Fives or Five Up, is a variation of the Draw game. In Muggins, players score points not only at the game's end but also with each move if the sum of pips at the ends of the playing line is a multiple of 5. Some variations allow the first double, or all doubles, to act as spinners, creating branching lines of play. In the All Threes variant, players score if the total pip count is divisible by 3; in Fives and Threes, scoring occurs if the total is divisible by 3 or 5. SUD Inc.