Blackjack Double Deck Strategy

• Blackjack Double Deck Basic Strategy
• Double Deck Blackjack Counting Strategy

1 and 2 deck blackjack games are sought after by blackjack players. The house is more in favor of the player compared to multi-deck games. It’s also easier for players (to learn how) to count cards, track deck penetration and so on.

But it’s also because of these player advantages that many casinos have done away with their smaller deck blackjack games, or have altered the rules significantly to put the majority of the edge back in favor of the casino. So you’ll be lucky to find a 1 or 2 deck blackjack game, either live or online.

Don’t let that stop you from looking, though. There are many benefits to single deck blackjack games, which I’ve outlined below. Further below I’ve shared some methods that casinos use to lower the player’s edge.

The above is a basic strategy table for 3 or more decks, dealer stands on soft 17, double on any 2 cards, double after split allowed, dealer peeks for blackjack, and blackjack pays 3:2. Key: S = Stand H = Hit Dh = Double (if not allowed, then hit) Ds = Double (if not allowed, then stand) SP = Split SU = Surrender (if not allowed, then hit). Blackjack Basic Strategy in Rules and Tips. We have talked about blackjack strategy a lot, but we believe to help you establish a foothold in the game, it would be best to break down the different stages for you, as in surrender, split and double, and specifically when to implement each one. 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. Knowing the basic strategy of when to use blackjack double down and splitting a pair would give you a significant advantage against the dealer. When to use blackjack double down Luckily for you, the basic strategy for blackjack have been mapped out with mathematical probability.

There are a number of benefits to playing at 1 or 2 deck blackjack casinos.

• More player blackjacks. The odds of being dealt a natural blackjack in a single deck game is 4.82%. With 8 decks your odds decrease to 4.75%.
• Less dealer blackjacks. The dealer is less likely to have a blackjack to tie the player if the player has one, because the one of 4 (or 8) aces have been used, drastically lowering the odds of the dealer having one.
• Deck penetration. Assuming the cards aren’t reshuffled every hand, a single deck will be penetrated more than two decks, than 3, 4 and so on. The further a deck is penetrated, the more accurate a card counter’s count, as well as his assessment of how many 10s and aces are left in the deck, and possibly, where.
• Card counting. Single and double decks are easier for players to count and keep track of.
• Great value for double downs. Similar to the reason for more player blackjacks, the chances of a player receiving a good card when double downing increases in a single and double deck.

The difference in any one of these points is miniscule, comparing the odds of a single deck to multiple decks. However, if you combine all of these points together, along with the various rules in favor of the player (like splitting aces, double downs after splits, etc), then it adds up to a significant advantage in favor of the player.

What Casinos Do to Lower the Player Edge

Blackjack Double Deck Basic Strategy

Obviously (it should be obvious, at least), the casino isn’t going to stand around and let players have this massive edge. They’re there to make money, after all. So assuming you can find a single or double deck blackjack game online, be aware that the casino may take the following actions to reduce your odds.

Double Deck Blackjack Counting Strategy

• Bad blackjack odds. In a single or double deck game, don’t be surprised to see 6:5 payouts for natural blackjacks. That reduces the payout from $1.50 to $1.20 per $1 wagered. This adds 1.39% to the house edge.
• Dealer hits soft 17. This adds .22% to the house edge.
• Shuffle every hand. This applies only to live blackjack games, since online games shuffle every hand anyway. But shuffling removes the advantage of tracking deck penetration and getting a (more) accurate count.
• Anti-card counting policies. Some casinos have policies prohibiting card counters from playing. 5Dimes is an example of this. Card counters that try to take advantage of live dealer games may have their accounts closed and winnings confiscated.

In short, casinos will do everything they can to increase their odds in single and double deck games, as well as prevent (or discourage) advantage players from counting cards.

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.

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.

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.