Blackjack Double Deck Odds

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In the old days, Blackjack was a simple game that utilized a single, 52-card deck of playing cards. In modern times, the most common versions of blackjack are played with 6 or 8 decks of cards.

Double deck blackjack basic strategy chart from Blackjack Review. Fine points include whether the dealer hits soft-17 and allows double after splits. Double-Deck Blackjack Strategy Introduction. To use the basic strategy, look up your hand along the left vertical edge and the dealer's up card along the top.

In Las Vegas, for example, 6-deck Blackjack is most common (though…more and more are starting to use 8 decks). Atlantic City casinos also offer 6 Deck Blackjack, as well as 8-Deck Blackjack. Another blackjack variation known as Spanish 21 often includes the use of 8 decks of cards and a much wider range of rule variations.

Of course, there are also many other variants of Blackjack you can find online. Most Microgaming casinos, such as Royal Vegas, will offer additional types such as Multi-hand blackjack. So read on for our focus on the basic games of Blackjack.

Double deck blackjack odds

Vegas Strip 6-Deck Blackjack Rules

  • All standard rules apply
  • Dealer Hits Soft 17: Yes
  • Double any two cards: Yes
  • Double after Split: Yes
  • Resplit: Yes (up to 4 hands)
  • Surrender: Varies

Atlantic City 6-Deck Blackjack Rules

  • All standard rules apply
  • Dealer Hits Soft 17: No
  • Double any two cards: Yes
  • Double after Split: Yes
  • Resplit: Yes (up to 4 hands)
  • Surrender: Varies

Spanish 21 8-Deck Blackjack Rules

Blackjack Double Deck Odds Poker

  • All standard rules apply
  • Dealer Hits Soft 17: Yes
  • Double any two cards: Yes
  • Double after Split: Yes
  • Resplit: No
  • Surrender: Yes
  • Surrender after Doubling: Yes
  • 5+ Card 21: Yes, bonus payouts for 5, 6 and 7 card 21, only before Double/Split.
  • All 10’s removed from decks (not Face Cards, just 10’s).

Conclusion

There is little practical difference in 6 and 8 Deck Blackjack games. Be sure to check the rules of various Blackjack games, noting in particular whether the dealer Hits or Stands on soft 17. When the Dealer Hits Soft 17 (bad for the player), the house edge is higher; when the Dealer Stands on Soft 17 (good for the player), the house edge is lower.

Last Updated: February 18, 2020

At first glance, it would seem only logical that a smart player will do better at a game that uses fewer decks, but that’s not always the case when you compare double-deck games with six-deck games. A lot of variables come into play, not the least of which are the rules of the games, the minimum bet size required and the amount of scrutiny the games get from casino supervisory personnel. If you do not count cards, it’s very likely that you’ll be better off avoiding the double-deck games out there. I know some of you may be surprised by that comment, but I make it based upon the fact that many casinos have less liberal rules on their double-deck games, yet they require higher minimum bets. As a result, the casino’s overall edge may be similar to that of their six-deck game, but you’ll have to bet more on every hand for the privilege of playing. Because a non-counter cannot get a long-term edge over the casino, you’ll just be betting more on a consistent basis and the casino will eventually get your $$$.

Now don’t get me wrong here; if the rules are the same, a game using two decks will have a lower casino edge than one that uses six-decks, yet the strategies are almost identical. If the minimum bets are the same (or are at least within your comfort level), then go with the 2-decker. That’s a key point, by the way. The proper Basic Strategy for a double-deck game closely resembles that of a four- or six-deck game, much more so than a single-deck game. The few differences between a two-deck and six-deck game with the same rules (dealer hits or stands on soft 17, double after split is allowed, etc.) lie mainly in splitting pairs and, since pairs are the rarest hands you’ll get, the impact is negligible. I might be wrong about this, so check, but I do believe that the only change is to split a pair of 7s against a dealer’s 8 in a double-deck game. In a six-decker, you don’t do that. Not a hand you’re going to see everyday, either way.

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Double deck blackjack oddsBlackjack
Note from the BlackjackInfo.com editor:
There are indeed only a handful of changes in strategy between the 6-deck and the 2-deck game. In a 2-deck S17 game: Split 77v8, Split 66v7, and Double 9v2. If the game is H17, also double A3v4.

My point is that you can move back and forth between DD and 6D games and not worry that you’re playing improperly, but the big question is whether or not you should. We’ve already covered the non-counter situation, so let’s turn our attention to those of you who do count. Even in this situation, the double-deck game isn’t necessarily the hands-down choice and I’ll show you why as we go along.

For whatever reason, many casinos treat their double-deck games as “premium” games, so they have higher minimum bets, may have less liberal rules, less favorable penetration and are usually watched more closely by the “pit critters”, as we lovingly call them here. Some casinos seem to think that counters are showing up in droves at their DD games and carting off chips by the box load, but that’s not necessarily the case. I know of some games that are very easy to beat, but they are few and far in-between. The reality is that beating the double-decker takes extra effort and some sharp play by the counter. But you came here for answers and I have them.

Blackjack Double Deck Odds

The primary advantage to playing a double-deck game is the volatility of the count. Unlike a 4- or 6-deck game, the running count, which is converted to the True Count (count per remaining deck) in a DD game can rise or fall quickly, but it’s gone almost as fast, due to the shuffle. That’s obviously good when the count is negative, but no fun at all when the count is “up”. Things happen quickly in a DD game and the wise counter takes advantage, but it requires good skills at converting to the True Count and almost needs some ability to anticipate what’s going to happen, while remembering that we never make guesses when counting.