“C” Backgammon Terms

The value of a position if the game is played without a doubling cube. This is a value between -3 and +3 and is equal to P(W) + P(Wg) + P(Wbg) - P(L) - P(Lg) - P(Lbg), where P(W) is the probability of winning the game, P(Wg) is the probability of winning a gammon (or backgammon), P(Wbg) is the probability of winning a backgammon, P(L) is the probability of losing the game, P(Lg) is the probability of losing a gammon (or backgammon), P(Lbg) is the probability of losing a backgammon.  Compare: Cubeful Equity.

The chance of winning the game if no doubling cube is used; also called game winning chances.

A rollout performed without using a doubling cube. Each trial is played to the end of the game and scored plus or minus 1, 2, or 3 points (4) depending on whether gamed ended in a single game, gammon, or backgammon (2). Because cubeless rollouts do not include cube play, they do not perfectly simulate a game, but cubeless rollouts have less variance and less systematic error than cubeful rollouts.

Dice cup.

The initial stake multiplied by the value of the doubling cube.