Hi guys is there anyone knowing anything about Martingale strategy? I'm new on it and i'd like to start to use it in online roulettes. Do u think that it worth trying using it if my budget is roughly 2k£? I found this guide
https://casino.guru/roulette-scam-strategies and they say it's better not to use it; but i have friends who won real money thanks to that.
Can anyone giving me any further info about? Thanks very much

Roulette is basically same as a dice but you need to calculate the odds yourself and you'll get them in fractions.
Red and black and Odd and evens are 50-50, not exactly as there's a green house edge. The house edge differs as smaller wheels have larger house edge while large wheels have smaller(for same number of greens). The groups, rows and choices offers smaller probability and you can combine them to get your own custom number.