An amusing bought with the DataGridView control
As usual, WinForms GUI programming is a terrible PIA. Even worse is the flagship of all controls the great beast known as the DataGridView. Working with the DataGridView bends your mind like offensive cutlery at Uri Geller’s dinner table. During my most recent encounter with this control of the third kind, I needed to use a ComboBox column, and that column needed to have an effect on the...
Black Box OMG it's addictive.
BlackBox - A simple puzzle game where you shoot rays of light into a black box, and determine the location of atoms inside the box based on the entry and exit points of the ray. Seriously addicting. Here is a Wiki article about it and an online-playable Flash version.