You can use strategic play to increase your chances of winning while playing some online casino games. A prime example of this is Single Deck Blackjack. Honing your blackjack skills could see you bring the house edge down from 2% to as little as 0.5%. You might even fancy trying a roulette betting system. Martingale and D’Alembert are two of the most popular betting systems for roulette games. We give useful information on roulette betting systems on our Roulette Guide page .