GNU Go is a free program that plays the game of Go. GNU Go has played thousands of games on the NNGS Go server. GNU Go is now also playing regularly on the Legend Go Server in Taiwan, on the WING server in Japan, and many volunteers run GNU Go clients on KGS. GNU Go has established itself as the leading non-commercial go program in the recent tournaments that it has taken part in
PANDA-gGo is a Go board, SGF editor, client for the Internet Go Server and an interface for playing with GNU Go. gGo is written in Java and available for Linux, OS X, OS/2 and Windows. gGo is distributed free of charge.
For experienced players, Jacqueline Go offers the following features:
- load and save SGF files
- edit game positions
- handicap stones
- can be used as a front end for other go programs (GTP)
- offers different boards
- supports English, German and Swiss German
PANDA-gGo is a Go board, SGF editor, client for the Internet Go Server and an interface for playing with GNU Go. gGo is written in Java and available for Linux, OS X, OS/2 and Windows. gGo is distributed free of charge.
pachi (Win32)12.40 A fairly strong Go/Baduk/Weiqi playing program
Minimalistic GUI for playing Go with GnuGo and other GTP applications
PANDA-gGo is a Go board, SGF editor, client for the Internet Go Server and an interface for playing with GNU Go. gGo is written in Java and available for Linux, OS X, OS/2 and Windows. gGo is distributed free of charge.
pachi (Win64)12.40 A fairly strong Go/Baduk/Weiqi playing program
dariush (Full Setup)5.2.0.1 
Dariush permits you,
- to play on IGS, LGS and WING.
- to learn Joseki and Fuseki ( compatible with the "Kogo's Joseki Dictionary ").
- to play with it or with an external go engine, like gnugo , Aya etc (7 free engines are available here).
- to solve problems.
- to open and save games formats : .go, .mgt, .sgf, .ght, .ugf et .ugi.
pachi (Source)12.40 A fairly strong Go/Baduk/Weiqi playing program
