The Martingale system is a high-risk betting strategy that involves doubling your stake after every loss. This can result in huge losses if you don't win eventually.
Most casinos do not allow the use of any type of betting system, so it's best to check with the casino before using this method.
There are a few online casinos that cater to individuals who want to utilize the Martingale method. These casinos usually have huge table limits, which is necessary if you wish to keep doubling your wager after each loss.
If you're willing to take a chance, you could perhaps turn a profit over time if things go well. However, the majority of gamers will lose money employing this method.