7colors game. See src/README.
Requires GTK 2. To install on debian:
$ apt install libgtk2.0-dev
Build and run
$ (cd src && make)
$ src/gtk -h
Usage: 7colors -[1|2] [c|h]
-1, -2 player 1 or 2
c, h computer or human
Examples:
7colors -1 h -2 c