Backgammon Engines
is built around the backgammon board, which doesn't know anything about how to play backgammon. The whole infrastructure (rolling the dice, ) that allows backgammon games is handled by backgammon engines.

The Offline Engine
The offline engine allows you to play against yourself, or probably more fun, another person sitting with you.

The FIBS Engine
FIBS is the First Internet Backgammon Server, a 24-hour international online community of backgammon players of all ages and experience from Beginner to Experts.
As well as playing the game, FIBS allows you to save games, chat with other players, and has a complex rating system.
There is also a large website well worth some of your time, if you are a backgammon fan.

The Backgammon Engine
The GNUbg engine does not yet exist (although it already has an entry in the Engine menu). Therefore, the remainder of this section should be taken with a grain of salt.
Use of the GNUbg engine requires a working installation of the actual GNUbg program. then starts GNUbg in the background and communicates with it. All this is transparent to the user ( it is hidden from the user) and all interaction with GNUbg is through the elements of .
If there are other enhancements that can help using GNUbg from , please contact the author of (or better: send a patch). Some of the more advanced features will probably be position analysis and save/restore functions. However, playing is the most pressing issue.
The one thing that will never happen is a combination of the GNUbg and the FIBS engine! Using computer programs to enhance user ratings is cheating!