Blackjack experts have used computer simulations and statistical analyses to try to find a way to beat the house at blackjack. Through their studies, they have determined a basic blackjack strategy that gives the player the best odds against the house.
This basic blackjack strategy helps the player make decisions about when to hit and when to stand. By playing this basic blackjack strategy, the player can play on nearly even terms with the house. This basic blackjack strategy is the starting point for more advanced card counting strategies professional blackjack players use to gain an advantage on the house.
Note that virtually all online casinos shuffle the cards after each round. This prevents players from using their computer to keep a count, and get an edge on the house. At online casinos, your best bet is to stick with basic blackjack strategy.