The Martingale Strategy is a negative progression betting system that can be used in blackjack and other casino games. The basic idea behind the Martingale Strategy is to double your bet after each loss, in the hopes of eventually winning a hand and recovering all of your previous losses.
For example, if you start with a bet of $1 and lose, you would double your bet to $2 on the next hand. If you lose again, you would double your bet to $4, and so on. If you eventually win a hand, you will win back all of your previous losses, plus a profit of $1.