Black box is a square box that contains cells. Some of those cells can contain a ball but you cannot see them. I can emit ray into the black box from its sides. Rays interact with balls inside the black box according to several rules. You have to determine the location of all balls in the black box relying on the results of emitting of the rays. This version is the first release on CNET Download.com.
||Windows XP/Vista, Microsoft .NET Framework 3