A biased roulette wheel that is NOT 100% horizontal and tilts ever so slightly. The tilt will over time favour a certain part of the wheel. So if you have nothing better to do over a week or so, watch and record the results over time and then put in the results into a computer and analyse which numbers have come up the most. If there seems to be a fairly even distribution around the wheel, then there is probably no bias; then go to the next wheel and repeat your analysis. However, if certain numbers come up a lot more often than others and they are close to the other frequent numbers, then there might be some bias. All you then have to do is to play the numbers at that part of the wheel.

BUT every player at the roulette table watches the wheel. Yes, but there is a difference between the social player and the serious professional gambler. A wheel watcher basically analyses each spin. Prior to starting gambling, he/she watches the results of a certain croupier over time and the results. When the same croupier is at the table after a change, the wheel watcher analyses the speed of the spin, rotation of the wheel and the location of the ball and places his bets at all the numbers in a certain area at the last second just before the "no more bets" is called out by the croupier. It is not a sure fire way of winning, but if you have the patience and mental capacity to do this, then you can actually reduce the house edge or even turn the odds slightly into your favour.

This is outlawed by all casinos. This follows the same principle as the human wheel watching exercise but this time using a computer to do all the predictions. The gamblers create a programme that uses a few variables such as the speed of the ball and location on the wheel during a spin to predict in which area of the wheel the ball is going to land. As mobile phones are banned by any of the tables, the computer has to be on the gambler himself.

There are a couple of documented cases where some players have actually done exactly this. And as it has been documented, yes you guessed it, they were caught. One of the most famous cases was a group who had a micro computer in the shoe and used his toes to tap in certain codes (representing the speed and location of the ball) into the computer and then the computer programme would make its predictions. They were relayed via a small pin in his shoe and the numbers tapped onto his foot. The two cases that I know of, they had made millions before they were caught. And I wonder if those millions were worth it once they were found out.

PLEASE NOTE THAT NONE OF THESE STRATEGIES WORK ONLINE!