ABPA Backgammon is a backgammon video game for Intellivision (ABPA stands for American Backgammon Players Association). This was one of the original four games introduced with the Intellivision system and is in the Intellivision Lives! game package for modern systems. The code for the game was later re-used in another game Triple Challenge by INTV Corporation. Source: Wikipedia, "ABPA Backgammon", available under the CC-BY-SA License.