Logo by Ebba Berggren
Gnugo screenshot.png
Developer(s)GNU Go Team
Stable release
3.8 / February 19, 2009; 9 years ago (2009-02-19)
Repository Edit this at Wikidata
Operating systemLinux, Windows, macOS
TypeComputer Go
LicenseGNU GPLv3

GNU Go is a free software program by the Free Software Foundation that plays Go. Its source code is quite portable, and can be easily compiled for Linux, as well as other Unix-like systems, Microsoft Windows and macOS; ports exist for other platforms.

The program plays Go against the user, at about 5 to 7 kyu strength on the 9x9 board. Multiple board sizes are supported, from 5×5 to 19×19.


At this level of performance, GnuGo was between six and seven stones weaker than the top commercial programs on good hardware as of early 2009, but comparable in strength to the strongest programs not using Monte Carlo methods. It did well at many computer Go tournaments. For instance, it took the gold medal at the 2003 and 2006 Computer Olympiad[1] and second place at the 2006 Gifu Challenge.[2]

Other Languages
Deutsch: GNU Go
español: GNU Go
français: GNU Go
日本語: GNU Go
русский: GNU Go
中文: GNU Go