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House of Blackjack: Blackjack House Edge – บ้านในแบล็คแจ็คคืออะไร?

2021-9-24 แหล่งกำเนิด:โป๊กเกอร์ ส ตา ร์ ส

  In blackjack the house edge is the statistical advantage the casino has over the player. At any blackjack table the dealer is the casino representative. By acting last in a hand, the dealer gains the advantage over the players by seeing their cards, actions and potential mistakes.

  When playing variants of blackjack, the house edge will often differ. Understanding how specific blackjack rules can change the house edge will help you to choose the right variant and casino to play at. This page will highlight some of the most likely rule changes which are in use across blackjack variants that significantly lower or raise the house advantage.

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  The house edge percentage in blackjack is 0.5%. This is determined by players effectively using basic blackjack strategy but will alter based on how well a strategy is executed. For more experienced players who use advanced blackjack strategies, the house edge can be reduced further towards zero. Likewise, if a player is playing without strategy, or implementing incorrectly, the house advantage can rise to 2%.

  Reducing the house edge in blackjack is achieved through blackjack strategy. Whether basic or advanced, knowing which decisions to make at the right time will help you to be more successful. As we mentioned above, advanced strategies which include card counting will bring it down close to zero, but this is an incredibly difficult thing to master and redundant when playing online.

  Download Blackjack Strategy Chart Now

  Download Blackjack Strategy Chart Now

  Understanding the odds and probability within blackjack is important house of blackjack to be able to accurately reduce the house edge. While simply using a blackjack chart can be effective, knowing why you’re making those decisions will give you an extra advantage at the table.

  Where it’s compulsory for the dealer to stand on soft 17, there are many decisions to make when evaluating their upcard and your two hole cards. Below are two tables which explain the blackjack bust probability for both the player and dealer.

  Hand value

  Probability

  11 or lower

  0%

  12

  31%

  13

  39%

  14

  56%

  15

  58%

  16

  62%

  17

  69%

  18

  77%

  19

  85%

  20

  92%

  21

  100%

  Dealer’s card

  Probability (Stand on 17)

  Ace

  17%

  2

  35%

  3

  37%

  4

  40%

  5

  42%

  6

  42%

  7

  26%

house of blackjack

  8

  24%

  9

  23%

  10

  23%

  Within a standard game of blackjack, there are many basic and complex rules which influence the house edge. We’ve listed them below, along with an explanation to help you understand for when you next play real money blackjack.

  Hit or Stand on Soft 17

  This is probably the most common rule difference in

  blackjack games. A soft 17 is one that

  includes an Ace valued at 11 and can be valued at 17 or 7. 17 is the

  standard value that a dealer would normally be forced to stand on.

  The house edge is higher when the dealer has to hit on soft 17 rather

  than stand on that value. The difference to the house edge is around a

  0.2% increase when the dealer hits soft 17. Many casinos use the hit soft

  17 rule, and those that don’t often make up for it with other rules, so

  be sure to look over the entire rule set. Never just use a single rule

  difference as the yardstick for an entire blackjack variant.

  Resplitting Rules

  Rules for splitting doubles can be complex, but the more liberal they

  are, the better it is for the player. Often, split hands that aren’t Aces

  can only be hit, and not doubled down on. If the player can double down on

  split hands, then the house edge is decreased slightly.

  Being able to split Aces is especially important for the player, as

  some blackjack variants count Ace and 10-point card hands after a split as

  naturals, paying them at the more favorable odds for a blackjack. The

  standard rule is that split Aces receive 1 more card and then stand, but

  if the player can hit hands of split Aces, this reduces the house edge by

  0.13%. If Aces can be resplit, then the house edge is lowered by 0.03%.

  Essentially, the more restrictions a game places on your ability to

  split, the higher the house edge is likely to be. If you take a rules base

  of split up to 4 hands, no doubling on split hands, and Aces can be split

  but not hit or resplit, then you should be able to roughly work out how

  the house advantage has been affected by the rule differences. That

  standard base has an optimal house edge of about 0.79% when dealer hits on

  soft 17 and 8 decks are used, so most blackjack variants should fall below

  that. Those that are more restrictive with splitting are likely to have

  quite a high house edge for a blackjack variant.

  Natural Blackjack Payouts

  The standard payout for winning with a blackjack is 3 to 2, which may

  not seem that much better than the even money payout on normal wins, but

  you’ll be cheating yourself if you believe that. Some blackjack tables

  pay 6:5 on winning naturals, and sometimes just even money. This is the

  most important of the common rules variants to pay attention to, as the

  6:5 payout increases the house advantage by 1.4% and the even money payout

  increases it by an astounding 2.3%. It’s a subtle rules difference to the

  unwary player, so be on the lookout for lower blackjack payouts.

  The Number of Decks

  The standard number of decks most online casinos use these days is 8.

  The less decks used, the more advantageous it is for the player. Normally,

  when fewer decks than 8 are used, the casino will make up for it with

  other less favorable rules. Single deck games in particular attract

  disadvantageous rules.

  If a casino offers blackjack with fewer decks and very few

  disadvantageous rules changes, then the house edge should be significantly

  lower than at other casinos. Get in on a game like that while it lasts, as

  casinos are known to occasionally release such games for a limited time,

  and then retract them once they have attracted new players to the casino.

  No Hole Card

  While the US tends to play blackjack with one dealer card face up, many

  blackjack variants in the rest of the world have no dealer hole card. This

  changes basic strategy, as the player has no information on the likelihood

  of an outright dealer win, which could put double down or split hand bets

  at greater risk. The effect is a 0.11% increase in the house edge if all

  bets are lost to a dealer blackjack, and no increase in house edge if only

  the original bet is lost to a dealer blackjack. Oftentimes, more complex

  rules are given for multiple losses to a dealer blackjack, and these all

  have their own effect on the house advantage. Games like Australian

  Pontoon are an example, but this is a fairly complex variant with many

  rule differences to standard blackjack.

  Which Card Charlie?

  Many blackjack variants allow players to win automatically if they draw

  a certain number of cards without busting. This will greatly change the

  basic strategy, as decisions on hitting a particular value will depend on

  the number of cards drawn to that hand. The addition of this rule is

  always advantageous to the player, but it is often accompanied by less

  favorable rules. Some variants will also payout 5-card Charlies at the

  higher natural blackjack odds of 3 to 2.

  Other Common Rule Changes

  There really is no limit to the rule changes in blackjack, but the

  previously mentioned ones are the most commonly encountered.

  Blackjack-like games and more unusual blackjack games like Blackjack

  Switch add in all sorts of unusual twists that can greatly change the

  nature of the game. For instance, in Blackjack Switch, players are dealt

  two cards and may switch the second cards dealt to each hand. Obviously,

  this rule is advantageous to the player, but it is countered by bizarre

  rules such as dealer push on 22.

  This guide should help you to decide which standard games offer the best expected value over time when comparing common differences in rules sets. Perfect strategy goes a long way to helping cut down the house edge, though. If you are going to play a specific blackjack variant for any extended length of time, you should find its perfect strategy and memorize it or print out a strategy card for it. Playing in an online casino makes it much easier to refer to a strategy card, though, so consider joining one of our recommended online blackjack casinos.

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