The most complete glossary of backgammon terms
A separate tournament prize fund made up of additional optional entry fees which goes to the highest finishing player(s) of those who entered the side pool. The side pool allows a tournament to keep the regular entry fee low while providing players willing to pay a higher entry fee a chance to win more. See post by Daniel Murphy.
An optional rule in money play: If both players throw the same number on the first roll of a game, the stakes are doubled. The doubling cube is turned to 2 and stays in the middle. Players usually agree to limit the number of automatic doubles to one per game.