“C” Backgammon Terms

The two numbers on a pair of rolled dice taken together; see combinations of the dice.

The play of a single checker that uses both numbers of a roll, such as a combination shot.

An opportunity to hit an opposing blot that requires using the numbers on both dice taken together; an indirect shot.   Compare: Direct Shot.

The number of possible rolls out of 36 that accomplish a specific objective.

An opportunity to hit an opponent's blot immediately after being hit yourself; in particular, an opportunity to hit from the bar.

Enter.

Mid-point.

A position from which there is only one reasonable game plan for winning, as opposed to a noncommitted position.

To keep checkers within six pips (2) of one another for mutual support; see connectivity.

A position with several made points close to one another and few gaps. Compact positions are powerful because spare checkers can easily build new points and rear points can be broken safely.

What you sometimes get paid in if you are not careful with whom you play.

A range of values that contain, with a certain probability, a rollout's convergence value. For example, with a 95%-confidence interval, there is only a 5% chance that performing the same rollout an infinite number of times will yield a result outside the interval. See post by Stig Eide.

A position in which all fifteen of a player's checkers are located within a short distance of each other. A position which is well-connected will tend to stay well-connected.

The degree to which all of a player's checkers work together as a unified army without large gaps between them. Connected checkers defend each other and are easily made into points (2).

Consolation flight.

A event for players eliminated early in the main flight of an elimination tournament; sometimes called a sympathy flight.

To reduce the number of blots a player has, frequently as a precursor to offering a double.

Advice offered by the crew to the captain in a chouette.

A game where the opposing forces have not moved past each other and where it is still possible for one player to hit or block the other.   Compare: Pure Race.

To prevent an opposing checker from escaping to its own side of the board by blocking it or hitting it and sending it back.

A player controls a point (1) if he has two or more checkers on that point. Only the player who controls a point may move additional checkers to that point.