Board Odds

Snap any backgammon position. Get each side's win probability and fair odds.

Light–

Dark–

ExampleOpening, Light to roll

Light fair odds

–

Dark fair odds

–

Light gammon win

–

Dark gammon win

–

Loading engine…

Quick estimate

Deep analysis plays out thousands of full games from this position on every core of your device, with dice-luck correction, and tightens the number until time runs out.

Board photo

Upload photo

A clear top-down shot works best. Screenshots from apps work too.

Win probability tap the chart to step through turns

Position tap to correct

To play

Dice

Fix the reading

With the edit panel open, tap a point or the bar to add or remove a checker. Light's home board is bottom right.

Quick estimates use a neural network trained by self-play, a 2-ply expectiminimax search and an exact bearoff database. Deep analysis adds variance-reduced rollouts across every core of your device. Everything runs in this page. They are for a single cubeless money game. Fair odds are break-even prices with no vig; a book that offers less is charging margin.