The GNU chess program
The gnuchess package contains the GNU chess program. By default, GNU chess uses a curses text-based interface. Alternatively, GNU chess can be used in conjunction with the xboard user interface and the X Window System for play using a graphical chess board. Install the gnuchess package if you would like to play chess on your computer. If you'd like to use a graphical interface with GNU chess, you'll also need to install the xboard package and the X Window System.