Backgammon.
Five thousand years and still no one's solved it. Dice give you options. Skill decides which one you take. The doubling cube is where friendships get tested.
You can run it today.
The draw, the fixtures and the results all work for backgammon, on the screen and on everyone's phone.
The rating comes next.
A rating needs somebody marking every match, and we build that marker one sport at a time. Until then a rating would be a guess, so we don't give one.
Want Backgammon to count?
Markers get built in the order people ask for them. Leave an email and we'll tell you the day it can carry a rating.