You can now play against the computer using GnuGo. You must have the GnuGo binary installed on your system. see the GnuGo home page for more details. RubyGo use the GTP protocol of GnuGo. If are a gnugo developper and plan to use RubyGo as interface, feel free to send me suggestions to improve it. The gnugo window is the usual game window, with some changes. The right side contains some buttons (these buttons can be used only if it is your turn):
Undo the last move. If you undo a move, both players will be set to human : gnugo will not play again immediatly if it is its turn. You can then undo another move.
Pass. There can be any number of passes. A game with gnugo is never over.
Check the score with gnugo. You can check the score at any time. When the game is over for gnugo, it simply pass.
The File menu is the same that with the game windows:
For further information, send me a mail