Being not so very good with pascal myself I am still trying to create a simulator myself. We'll talk later [img]smile.gif[/img]
But seriously, from what I see of the way your simulation works, you let it pick a certain door every time, and check to see if the prize is behind one of the other two doors. Did you think about removing one completely, or are the possible answers
Door 1, Door 1, not (2 or 3)
Door 2, Door (2 or 3), not 1
Door 3, Door (2 or 3), not 1
Obviously, if that is the case you count door 2 and 3 double.
Then there's the random number generator, which sometimes does not go from 1-6 but from 0-5, or the other way around, and could be used wrong, and so on. There's a good chance it contains a flaw. On the other hand, there's a good chance it's right as well
Back to my own...