Blackjack

Blackjack, also known as Twenty-one or Vingt-et-un (French : "twenty-one"), is the most widely played casino banking game in the world. Blackjack is a comparing card game played with one or more French decks of 52 cards. The player draws cards to an initial two card hand with the object of bringing the total hand value as close as possible to 21 without exceeding it, so that the house, which plays after the player, will stop short of the player's total, or will lose by exceeding 21. Many rule variations of blackjack exist. Since the 1960s, blackjack has been a high profile target of advantage players, particularly card counters, who track the profile of cards yet to be dealt, and adapt their wager and playing strategy accordingly.

Other casino games inspired by blackjack include Spanish 21 and pontoon. The recreational British card game of black jack is a shedding-type game and unrelated to the subject of this article.