What's luck got to do with it? The math of gambling - physics-math - 11 August 2009 - New Scientist
http://www.newscientist.com/article/mg20327202.600-whats-luck-got-to-do-with-it-the-maths-of-gambling.html?full=true

Even if you can't beat the system, there are some cunning ways to tilt the odds in your favour