Regardless of whether blackjack is played online or in a land-based casino doubling down is a highly advantageous play to make. The key is knowing when to double down and why those times are the best to do so.

First the double down play is a blackjack play in which the player doubles his or her original bet and receives only one more card before standing. Because only one more card is received it is important to already have a good starting hand total.

Doubling down, per basic strategy, should be done when dealt the following hard hands against the specified dealer up cards:

- Hard 9 vs. dealer’s 3-6
- Hard 10 vs. dealer’s 2-9
- Hard 11 vs. dealer’s 2-10

The reason it is most advantageous to double down on these hands is because, statistically speaking, this hands have good potential of becoming strong hands with one card. And even if the blackjack player receives a low card and their hard hand becomes a stiff hand, the dealer still has a decent shot of busting—which is what is desired when faced with a stiff hand.

Doubling down allows a blackjack player to earn double their payout if they win. It is taking full advantage of being dealt a good starting hand total.

If you had bet $10 and been dealt one of the above hands, would you rather be paid $10 for winning or $20?

If a blackjack player is in the position to take full advantage of their hand and make the more on a payout, then he or she should. And that is the point of doubling down in blackjack.

In my previous post I discussed why you never want to split a pair of 5’s. It simply boils down to what play is in the best interest of your strategy. And blackjack strategy is all about making the best play for the situation you find yourself in.

In the case of being dealt 10/10 you have two options. You can put forward another bet and split the pair into two new hands, each starting with a 10.

On the surface this seems like a smart play to make. You will be starting both hands on solid ground. If more low cards are flowing you have somewhat of a chance of building both 10’s up to strong hands. If the cards are flowing high then you have a chance of maybe creating two strong hands.

Or you choose the other play and stand on the pair as a hard 20.

This is the better play to make. A hard 20 is one of the strongest hands to be dealt. The only way the dealer can beat you is if he has a natural blackjack or if he hits to 21. So you have pretty strong chances of winning.

If you were to split the pair you run the risk of sacrificing a strong hand for only the chance of creating hands that you might be able to build up into strong hands. But why sacrifice a strong position for one that is unsure?

While blackjack is a gambling game, it is seen as ignorant to take unnecessary risks—even when gambling. The point of having a strategy in blackjack is to make the most advantageous play to win. Splitting a pair of 10’s is not nearly as advantageous as playing the hand out as a hard 20.

How to Play a Hard 16

Being dealt a hard 16 is one of those seemingly tricky hands. It is not a little hand, but it is not by any means a strong hand either. And that makes it difficult to play.

Naturally what play you choose is determined, or should be determined, by the dealer’s up card. However, many blackjack players will stand on a hard 16 regardless of what the dealer is showing. Standing is the correct play to make half of the time. But not all the time.

Let’s take a look at the basic strategy chart. You will see that it recommends standing when faced with a dealer’s 2 through 6. But it recommends to hit when faced with a dealer’s 7 through 10, a face card or an Ace.

Before you say that hitting a hard sixteen against anything is too big of a risk because the total is too high, look at some logic first.

If you assume that the dealer’s hole card is worth 10, then that means that he would have a total of 17 through 20, or even blackjack. And all of those hands will beat a hard 16. You hit because you know that the chances of losing are pretty solid if you stand against those dealer up cards. So you hit to try to improve your hand rather than going down without a fight.

This is why you stand when the dealer is showing anything less than a 7. Again, assuming that the dealer’s hole card is an Ace, he would have a 12 through 16. And he would have to hit all of those. You as a player are hoping that he will hit to busting.

And that’s why you stand—your chances of winning are greater in the dealer busting. But when he’s showing a 7 or higher he already has a chance of winning so you hit in hopes of making your hand more competitive.

So when you find yourself with a hard 16 and facing a 7 or higher remember to hit. Even though it seems like a gamble do it. You will have a better chance in the long run by hitting against those higher cards than in standing.

Unfortunately the average blackjack player will be dealt a stiff hand around 43% of the time while playing. Stiff hands include hard 12 through hard 16. The reason it feels like we are dealt these hands more often is that they occur more often. There are more hard hands in blackjack than there are strong hands or low hands.

The best that you can do with a stiff hand is to play according to basic strategy. But if you are lucky enough to be playing in a game that allows for early or even late surrender, you can go with those plays and minimize your losses.

The frustrating aspect of hard hands is that it is difficult to make a winning hand with them and not bust while trying. But of the hard hands, hard 12 is the one that offers you the most opportunity.

According to basic strategy, it is best to hit a hard 12 against seven of the possible dealer up cards, whereas the other hard hands are only hitting on five of the dealer up cards.

With a hard 12 basic strategy recommends hitting against not only 7 and higher, but also hitting against a dealer’s up card of 2 or 3.

When hitting a hard 12 against a 2 or a 3, you have a 37% chance of winning the round. If you stand against a 2 or a 3 like you would with the other stiff hands, you only have a 35% chance at winning.

Blackjack strategy is about increasing our chances of winning and minimizing our losses. And while we have a greater chance of losing with a stiff hand, we have to do the best we can to keep our losses down. If there is a way to increase our chances of winning, we are likewise reducing our chances of losing.

In the case of a hard 12 against a 2 or 3, the best play to make to increase our chances is to hit. While we are only increasing our chances by 2%, it is 2% more than if we did nothing and stand.