When playing blackjack, you want to beat the dealer's hand. The dealer is the only person you need to beat, so while other bettors can join you, they are all competing to beat him or her. Blackjack has the best odds of winning in any game, with a 49% chance of winning.

The longer you play, the greater the odds are that the result of your play will match up with the house edge and that you will lose money. The house edge varies significantly among the different casino games, with blackjack the lowest and keno the highest.