Learn everything you need to know about one of the larger Western domino sets commercially available, the Double-Nines.

There are 55 individual tiles in a Double-Nine domino set, and each tile is twice as long as it is wide (known as "double-squares").  They allow you to play some of the more advanced domino games, can be used to add variety to the simpler ones, and allow more players to take part in a game than the standard Double-Six domino set.  Double-Nines are generally best suited for games of 4 to 6 players.

Each end of a Double-Nine domino tile, divided by a central line (or bar, divider, or centre), is marked with one of ten suits denominated as a number of spots (or pips) ranging from 0 (or blank) up to 9.  Each of the ten suits has ten members with their spotted suit value marked on one end (or both ends for doubles) of the ten tiles that make up a suit.  The total number of spots found on a Double-Nine domino set is 495.

There is a lot more to Double-Nine dominoes that hasn't been covered here.  To learn more about their general features, like spinners, different sizes, the spots, etc., summarising all the key facts and relevant information common to all standard Western double-square dominoes, try clicking on the link below...

Double-square dominoes aren't always conventionally marked with spots (or pips). There are many sets of dominoes manufactured that are marked with numbered numerals to denominate the different suits on either end. For more details on these dominoes, try clicking on the link below...

• Dominoes Without Spots