GNU Chess 5.0.7

GNU Chess lets most modern computers play a full game of chess. It has a plain terminal interface but supports visual interfaces such as X-Windows "xboard".

Version 5.07 is the current release. Version 5 shares no code with versions 1.x through 4.x.

This release features simplified chess code and modern data structures, which make it more pedantically accessible, easier to modify, and more understandable for skilled chess experts who are not necessarily programmers.