GNU Backgammon (gnubg) is for playing and analysing backgammon positions, games and matches. It's based on a neural network. In the past twelve months it has made enormous progress. It currently plays at about the level of a championship flight tournament player. Depending on its parameters and its luck in recent games, it rates from around 1900 to 2000 on FIBS, the First Internet Backgammon Server -- at its strongest, it ranks in the top 5 of over 6000 rated players there) and is gradually improving; it should be somewhat stronger than this when released. Since almost all of the CPU time required during supervised training is spent performing rollouts, and rollouts can easily be performed in parallel, it is hoped that users will be able to pool rollout results and collectively train it to a level stronger than any individual could obtain. You can also compete against recent versions of gnubg on FIBS; it plays there under the names gnu, mgnutest, mpgnu, mgnu_advanced, mgnu_expert, mgnu_WClass, ParlorBot and mgnu_zp. GNU Backgammon also playes on GamesGrid. A version of GNU Backgammon with no lookahead, 0-ply, plays with the nickname GGraccoon. GGraccoon is a very popular opponent among the members at GamesGrid. GGraccoon usually rates about 1900. You may play GNU Backgammon using the command line or a graphical interface (based on GTK+). For 3D Boards support you will need the GTK OpenGL extension (gtkglext) available at SlackBuilds.org. gstreamer and sqlite are also optional dependencies, and will be detected automatically if they are installed.