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Two aces and two eights in a standard deck of playing cards.. Splitting aces and eights is part of blackjack basic strategy.Rules vary across gambling establishments regarding resplitting, doubling, multiple card draws, and the payout for blackjack, and there are conditional strategic responses that depend upon the number of decks used, the frequency of shuffling and dealer's cards.
Blackjack (formerly black jack or vingt-un) is a casino banking game. [1]: 342 It is the most widely played casino banking game in the world.It uses decks of 52 cards and descends from a global family of casino banking games known as "twenty-one".
In blackjack, the best possible hand for the player is to reach a score of 21 with exactly two cards, which necessarily involves an Ace and a ten-valued card (a 10, jack, queen, or king). [2] This hand, which usually defeats any other hand of 21 and carries a higher payout of winnings, is referred to as a "blackjack", or a "natural".
A blackjack game in progress. Card counting is a blackjack strategy used to determine whether the player or the dealer has an advantage on the next hand. Card counters try to overcome the casino house edge by keeping a running count of high and low valued cards dealt.
When the dealer shows an ace and the player has a blackjack, the player can opt for even money and get paid immediately at 1:1. This is a version of insurance rather than a different bet. If the dealer has blackjack, the hand is a push, but the player receives twice the value of the insurance, which is the same as the original bet.
Some online casinos claim higher payback percentages for slot machine games, and some publish payout percentage audits on their websites. Assuming that the online casino is using an appropriately programmed random number generator, table games like blackjack have an established house edge. The payout percentage for these games are established ...
However, the casino may only pay 4 times the amount wagered for a winning wager. The house edge, or vigorish, is defined as the casino profit expressed as a percentage of the player's original bet. (In games such as blackjack or Spanish 21, the final bet may be several times the original bet, if the player doubles and splits.)
As 3 cards in 12 are worth ten, the chance of the dealer getting a blackjack when showing an Ace is only 25%. Therefore, for insurance to be an even bet, it would have to pay 3:1, not 2:1. The house edge on the insurance is 24.7%, one of the worst of any wager in a casino. Hitting, standing, and splitting all follow similar rules to blackjack.