It is really hard to beat the house with math and probability since.. probability wise, house have an edge . But I believe with proper control and good timing, we are able to beat the house. Just like what I always do in yobit. I do martingale and wait till I got 7 consecutive loses and win. After that I stop bagging the won Bitcoin. It is hard but it is doable.
It is not really hard to beat the house, it is more like impossible.
You can't beat the house at the long term,the math and the probability is on the house's side,which means that if you will gamble unlimited amount of time, by math, you will always end up losing ALL of your money.
Martingale works only if you have an amount that is close to Unlimited money, that makes you to have a lose precentage that is close to 0%, but most of the online casinos set up a minimum bet and they won't let you bet low at flip coins bet(50/50), so the strategy won't be able to work.
Casinos are aware of all the tricks and they are simply blocking them all.