GammonPrep Play free

Backgammon glossary

The vocabulary, without assuming you already know it.

The board and the checkers

TermMeaning
PointOne of the twenty-four triangles a checker sits on.
BlotA single checker alone on a point, and therefore able to be hit.
Made pointA point held by two or more of your checkers; your opponent cannot land there.
AnchorA made point inside your opponent's home board — a safe landing spot for your back checkers.
The barThe ridge down the middle where hit checkers wait to re-enter.
Home boardYour last six points, where checkers must gather before bearing off.
Bear offTo remove a checker from the board once all fifteen are home.

Shapes and plans

TermMeaning
PrimeConsecutive made points. A full prime of six cannot be jumped by any die.
BlitzAttacking quickly — hitting and closing home board points to trap a checker on the bar.
Back gameDeliberately holding two anchors deep in the opponent's home board, playing for a late hit.
RaceA position with no contact left, where only the pip count matters.
Golden pointYour 5-point — generally the most valuable single point on the board.
Bar pointYour 7-point, next to the bar; strong because it extends a prime.

Scoring and the cube

TermMeaning
GammonA win worth 2 points, when the loser has borne off nothing.
BackgammonA win worth 3 points, when the loser has borne off nothing and is still on the bar or in the winner's home board.
Doubling cubeThe die recording the stake, offered rather than rolled.
Take / DropAccepting a double, or conceding the current stake instead.
BeaverRedoubling immediately while keeping the cube — not used in all rulesets.
Crawford gameThe one game played without the cube after a player reaches within a point of winning the match.

Analysis

TermMeaning
PipOne point of movement. Your pip count is the distance left to bring every checker home.
EquityThe average points a position is worth, counting gammons and backgammons.
RolloutPlaying a position out many times to measure how it actually scores, rather than estimating it.
PlyOne level of lookahead. A 2-ply search considers your move and every reply to it.

Terms make more sense attached to a position than to a definition.

Open GammonPrep