Monkeyjump is a program for messing around with GNU Go and SGF-files.

I wrote it back in 2005 but decided to release it in 2013, since it was somewhat fun.

Recently ported from Python 2 to Python 3.12.

Install Poetry, checkout the project and run:

poetry run ./monkeyjump

Default keybindings:

click to place a stone
g to view the last placed stone
z to pass (for white)
f to view the final score
backspace to clear the board and start a new game

q to quit
u to undo
e estimates the score

• GNU Go is a program that can play Go
• The term "monkeyjump" is used in Go
• Go is an approximately 4000 year old game
• Search the web for "igo", "baduk", "weichi" or "go" for more info about Go Here's the Wikipedia entry: http://en.wikipedia.org/wiki/Go_(board_game)

• Interfacing GNU Go via GTP (the program speaks GTP for you)
• Guessing your way through professional games you might have stored as SGF
• Playing Go against GNU Go, while beeing able to edit the board at any time (this means you have to check for yourself if your move is valid)
• Avoiding Cgoban1 and/or the ascii-interface of GNU Go (Cgoban2 doesn't seem to support GNU Go directly)
• Stepping through an SGF-file
• Saving the pattern of the white stones as an image
• Saving basic SGF-files
• Playing with patterns of stones
• Checking what GNU Go would have played

• Python 3.12 and Pygame
• GnuGo or another GTP-speaking go-playing computer program (that speaks the same GTP dialect as gnugo, few do).

• Edit the file "gnugocmd.conf" in order to enable your favorite gtp-compatible program ("gnugo --mode gtp" should work).
• Edit the file "keybindings.conf", so that you know what all the keys does.
• Start the program. You can give a board size as the first argument (9, 13 and 19 are common)

• Loading SGF-files doesn't always give the correct positions. Patches and pull requests are welcome.
• Does not work with Leela Zera or Katago yet.

Thanks to Ulrich Goertz ([email protected]) for the images of the board and the black and white stones, which are included in his GPL-ed program uliGo.

• Author: Alexander F. Rødseth
• License: GPL2
• Version: 1.0.0