Simply speaking, it’s doubling the bet after a loss. It looks so easy
to win at this game, but, statistically, it’s not impossible to lose
ten times in a row, and the loss will become huge.
you want to try, Freebitco.in just created a free martingale. You get around 300 satoshi for free every hour, you can try to multiply them with
the free automatic martingale game.
It’s interesting to try it, because you can see how easily you can make money, but also you can see that you can lose the whole capital in a few seconds. Amazing.