Gonzalo García-Pelayo did computer analysis on a roulette wheel’s results at a casino in Spain to find the wheel’s imperfections, helping him better predict the next number. After winning €2m, legal action against him by the casino was unsuccessful. It was ruled that the casino should fix its wheel.

* [Source 1](https://en.wikipedia.org/wiki/Roulette#:~:text=In%20the%20early,%5B24%5D)

>[By continuously betting](https://www.fool.com/investing/value/2006/10/10/wheel-of-fortune.aspx) on the numbers that his analysis showed came up most often, Garcia-Pelayo turned a 5% disadvantage into a near 15% advantage

[When García-Pelayo…](https://medium.com/@Kamransoomrow/who-was-gonzalo-garcia-pelayo-949a45e1e69d)

>…had amassed millions in winnings, many casinos mounted legal challenges against him, seeking to bar him from their premises. But his techniques were legal because they were founded on the detection of mechanical flaws in the wheels rather than an attempt to manipulate the game at all.

Good on Brian Cox

There’s even a movie in the style of *Money Heist.*

[https://www.youtube.com/watch?v=y1WYmcgXXLg](https://www.youtube.com/watch?v=y1WYmcgXXLg)

In 1873, a British engineer called Joseph Jagger did the same thing *without* a computer:

“After studying the tables at the Casino de Monte-Carlo for a month to determine which numbers came up most frequently he began to place successful bets. Jagger is reputed to have won over 2 million francs over several days, the equivalent of £80,000 at the time and, according to *The Times*, worth £7.5 million in 2018.”

[https://en.wikipedia.org/wiki/Joseph_Jagger](https://en.wikipedia.org/wiki/Joseph_Jagger)