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The reason that equity is used instead of winning probability is because it is possible to win a single game, a double game (gammon) or triple game (backgammon). Let's say that the value of the game, or bet, is $1. (That would occur if the cube is in the middle. If it has been turned, you multiply by 2, 4, or whatever the number is on the cube.) Let's ...


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Equity is especially useful because it pre-calculates some of the analysis used in utilizing the Doubling Cube. Consider the situation described by @Skytten: We have two chequers on the 2-point to roll; opponent has two chequers on the 1- and 2-points (a guaranteed win if he/she gets to roll). Our equity is #44.44. If we offer a double to opponent our ...


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You can "translate" the word "equity" as a value of the particular position. Lets imagine we are one roll away from ending the match and we only have two checkers on deuce point. We will win with the probabilty of 26/36 and we will lose with the probability of 10/36. Lets also imagine that there is a friend who offers us some money and asks us to abandon ...


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The one of the biggest difference one sees between an experienced and a novice player is that the beginners hit the checkers almost without considering the alternatives. There are lot of positions where you're better off with not hitting. Just a tip to remember: Backgammon is not a game of hits, its a game of positions.


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Just to make it an easy and fast rule, a player MUST play the larger part of the roll, if he can play ONLY one part of his dice. In the above example, if red rolls 21, he MUST play 3/1, and is not permitted to play 3/2, this is not a choice, its a mandatory move.


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Player A has 14 stones on Player B's one-point, and a fifteenth stone on his 3-point. Player B has a wall at least two points long running back from his two-point. If player A rolls 1-2 he can move his fifteenth stone either one or two points (respectively to either the two-point or one-point), but cannot move it three (ie remove it) because not al his ...



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