Install gnubg by entering the following commands in the terminal:
sudo apt update sudo apt install gnubg
Description:
graphical or console backgammon program with analysis
GNU Backgammon is a strong backgammon program (world-class with a bearoff database installed) usable either as an engine by other programs or as a standalone backgammon game. In addition to supporting simple play, it also has extensive analysis features, a tutor mode, adjustable difficulty, and support for exporting annotated games. It can be played either from a GTK+ graphical interface, optionally with a 3D board, or from a simple text console.
Homepage: http://www.gnubg.org/
Version: 1.06.001-1build1
Section: universe/games