GNU Chess

I'm not involved with the development of GNU Chess 5 and am no longer the GNU Chess FAQ maintainer. The new program looks nice, and I hope the authors continue to develop it.

GNU Chess 5 works with XBoard and WinBoard. The current version of the WinBoard self-installer has both GNU Chess 4 and GNU Chess 5 bundled in with it.

Although GNU Chess 4 is no longer being developed, it is still of some interest to folks who like to study and compare chess engines. Here is a small collection of old versions that I've kept. The "Source code" versions can be compiled for Windows to work with WinBoard, or for Unix to work with XBoard. The "Windows ports" use their own custom graphical interface, not WinBoard.

Source code

<a href="http://www.tim-mann.org/gnuchess/gnuchess-4.0.pl80.tar.gz">GNU Chess 4.0 patchlevel 80</a>

<a href="http://www.tim-mann.org/gnuchess/gnuchess-4.0.pl79.tar.gz">GNU Chess 4.0 patchlevel 79</a>

<a href="http://www.tim-mann.org/gnuchess/gnuchess-4.0.pl78.tar.gz">GNU Chess 4.0 patchlevel 78</a>

<a href="http://www.tim-mann.org/gnuchess/gnuchess-4.0.pl77.tar.gz">GNU Chess 4.0 patchlevel 77</a>

<a href="http://www.tim-mann.org/gnuchess/gnuchess-4.0.pl75.tar.gz">GNU Chess 4.0 patchlevel 75</a>

<a href="http://www.tim-mann.org/gnuchess/gnuchess-3.1+.tar.gz">GNU Chess 3.1+</a>

Windows ports

Macintosh ports

GNU Chess for Macintosh 4.0b5 (Dan Oetting)