A great roulette player with amazing achievementsThe name of Joseph Jagger is well known in the online roulette circles. In some ways he is a gambling genius and a legend worthy of all the praise that is heaped on him. The level of success that he enjoyed at the roulette table has not yet been matched by anyone. In just a week he was able to win over five million dollars at the Monte Carlo Casino. That is a life changing event and those are life changing amounts of money.Controversial wins for Joseph JaggerIt is claimed that Joseph Jagger employed 6 people to clandestinely keep records of the results that the wheels were producing at the Monte Carlo Casino. This information helped him to build a complex database of raw information that could be used to construct strategies for winning significant amounts of money. Specifically he was able to identify a wheel that had bias towards certain numbers. This is the Holy Grail for gamblers and it is a very rare feat. Most casinos will do everything in their power to prevent such an outcome.This information would make Joseph Jagger a millionaire. The wheel in question had a bias for the numbers 7, 8, 9, 17, 18, 19, 22, 28, and 29. It appeared that the numbers won more often than their counterparts. He then visited the casino, armed with this knowledge and betted on those numbers. As the saying goes “he took them to the cleaners”. The Monte Carlo Casino suffered historic loses as a result of this sort of betting.They say that the date was in July 1875 and the first bet was on 7. The mathematical edge continued to grow until he had completely steamrolled the casino. Unfortunately for the Casino, Joseph Jagger continued to return for consecutive days. The wins were becoming unsustainable especially when other players began to bet on number 7. In order to trick him, the casino moved the wheels around. For a time he lost a bit but then went back to winning.The distinct scratch that he had made on the biased wheel meant that he could still identify the biased wheel. In order to bring an end to the saga, the casino decided to completely change the wheels including the frets and metal dividers. This removed the bias but Joseph Jagger was wise enough not to play again. He walked away with his millions and the casino was left to mull over the wonders of a biased roulette wheel.What can we learn from Joseph Jagger?First of all you need to know when the time is up. It is better to quit while the going is good. The biased wheel is completely irrelevant to the online casino because everything is done electronically. This is a one-off incident that adds fascination to the game. From a practical point of view in this century, there is no way a casino would let such a situation escalate into millions. They are far too conscious of their profit margins.