The random number generator used on the ucsd example is not random. I was able to game it to increase the rate of wins on staying on the original picked door from 29% to 43.5% with only 100 plays..
[img_assist|nid=8457|title=Gaming the random number generator|desc=Gaming the random number generator used on: http://math.ucsd.edu/~crypto/cgi-bin/monty2?2+11807|link=node|align=left|width=466|height=533]
