Cracking the code

If you like solving problems, you will like this:
http://www.wired.com/magazine/2011/01/ff_lottery/all/1

There must be some algorithm behind the scratch games sold in stores. Here is one story of how a mathematician/statistician solved the puzzle. Not all of the tickets are meant to win and vice versa.   The trick is to search for the code that lays behind generating the winning lottery tickets.