dude are you serious!?!? the martingale system ALONE is flawed. BUT blackjack takes considerable skill and utilizing the laws of probability when playing and betting. yes everybody is right, there is no surest system to beat the house. the house will always have the advantage. as a true professional gambler we need to accept that reality. BUT the only thing we can control is how much we bet and when to bet it. the only system that works is probability oh and believe me it takes a whole lot of mental power to focus on the cards(i am not talking about card counting, which is also a useless system). my way of gambling is not to fall into a martingale impulse because we will surely lose.