GUnknownGNU Chess ↗chess-playing program for playing chess against the computer on a terminal or, more commonly, as a chess engine for graphical chess front-endsIntel P6 / x86-64
GUnknownGNU Go ↗free software program that plays Go with the userWindows / Linux / macOS / Game Boy Advance / Mac operating system
GPuzzleUnknownGNUbik ↗a puzzle game - a software implementation of the Rubik's CubePLATFORMS TO BE ANNOUNCED