Playing Programs

AIGO
AIGO is a Go program for PalmOS. Shareware.
http://www001.upp.so-net.ne.jp/iizuka/AIGO/

Atari-Go
Plays a form of atari-Go (first capture Go) on a 10x10 board.
http://www.cis.hut.fi/praiko/atarigo/

AUGOS
The Automatic Go Player. A program for Windows that can play the board game Go.
http://www.augos.com/go/augoseng.html

Aya
Go playing program. Aya was placed 5th in 21 Century Cup in Canada.
http://www32.ocn.ne.jp/~yss/index.html

Computer Go Ladder
An informal competition between various go-playing computer programs.
http://www.cgl.ucsf.edu/go/ladder.html

Crazy Stone
A freeware 9x9 go-playing program.
http://remi.coulom.free.fr/CrazyStone/

Explorer
Explorer is a program that plays Go. Winner of the first Computer Games Olympiad in London 89.
http://www.cs.ualberta.ca/~mmueller/cgo/explorer.html

Gnu Go
A free cross-platform computer go opponent.
http://www.gnu.org/software/gnugo/gnugo.html

Go++
Go playing program. Winner of numerous international computer Go tournaments. The result of twenty years research and development.
http://www.goplusplus.com

Go game machine
Plays only on a 9x9 board. Intended as an introduction to Go, particularly for children.
http://www.nihonkiin.or.jp/lesson/index2-e.htm

Godot
An applet that plays Go, written by Jens Lieberum. The best games are kept in a highscore list and can be replayed.
http://swiss2.whosting.ch/jenslieb/godot/godot.html

Many Faces of Go
The 1998 World Computer Go Champion, and ten time US Computer Go Champion. A strong Computer Go opponent.
http://www.smart-games.com/

OpenGo
Intended as a workbench for prospective programmers of go engines, this program provides some simple built-in Go opponents for users to play and supports pipe and modem players.
http://www.inventivity.com/OpenGo/

SmartGo
Go-playing program and Go game editor. Free 9x9 version available for download.
http://www.smartgo.com/

TurboGo
Go-playing computer program and screensaver, plus an online joseki database which replays interesting sequences.
http://www.turbogo.com/