Blackjack is a card game in which each player attempts to score 21 without busting (exceeding 21). Face cards are worth 10 and aces are worth 1 or 11, depending on the choice of the player. In casino Blackjack, the dealer plays according to predetermined rules - for example, the dealer must take a hit (a card) at 16 or below, and must stay at 17 or above - regardless of what the other players have showing.
