The most complete glossary of backgammon terms
A backgammon variant similar to Acey-Deucey (2) in which a roll of 1 and 2, called a Mexican, gives the player extra turns. See: How to Play Mexican Backgammon.
A guideline for cube handling in pure race positions. If you add 10% to your pip count, you should double if the result is not more than two pips greater than the opponent's count, and you should redouble if the result is not more than one pip greater. Your opponent should accept the double if your count plus 10% is no more than two pips less than his count.