The Handbook
is a nice little program meant to amuse you for anywhere from 3 minutes to 6 days(straight).

Introduction
is a simple game. It is played by one player, so there is only one winner :-) You play for fun and against the high score. It has been inspired by SameGame, which is only really famous on the Macintosh.
In 1997 Stephan Kulow and Marcus Kreutzberger wrote Probiere (a German pun). It was their first attempt to write a X11 application. They decided that it would be a good idea to port it to KDE, and here we are.