1. Should You Split 9s In Blackjack
2. Should You Always Split 8's In Blackjack
3. Do You Always Split 8's In Blackjack
4. Should You Split 10s In Blackjack

A lot of players, even the ones who have been enjoying Blackjack for years, make the common mistake to sit on the table without the needed preparation. They stick to the old unwritten rules and don’t take into account the fact that throughout the years many professional gamblers have observed the patterns of the game thoroughly and managed to develop and improve the basic strategy significantly.

The statement that players should always split when they have a pair of 8s is well-known. It has been used by many of them all over the world. However, more and more arguments are appearing against some of the cases of this pair which suggest that splitting is the best move. There are exceptions to every rule, as you shall see later, albeit very few where splitting 8s is concerned.

It is just one of those tricky situations that always provokes heated discussions and second thoughts during the game. Nonetheless, basic strategy is perfectly clear about how players should approach this card holding if they engage in blackjack recreationally, even more so if they are looking to increase their win rates and cut their long-term losses.

It is really important for players to know what is the best way to proceed in advance, especially in such tricky situations in order to reduce the amount of their money loss to the minimum.

As already mentioned, having a pair of 8s is a challenging position to be in. Therefore, it is best to have a look at the reasons why a particular move is suggested to be the most reasonable one. Of course, even though blackjack is a game of skill, it is still played in a casino and chance is involved. There can never be a 100% guarantee of winning.

Should you receive two aces, the split is an easy move because an Ace is the most powerful card in Blackjack. Any card drawn next that is valued at 10 gives you 21. The deck has more 10-value cards than any other single value—10s, Jacks, Queens, and Kings all count as 10. No, this is wrong. You TOTALLY want to split 8s and aces when the dealer has 4-6. You are basically a favorite ONLY if you split: AA against Dealer 4: Stand: -0.20084 Hit: +0.12929 Split: +0.58230 AA against Dealer 5: Stand: -0.15875 Hit: +0.16083 Split: +0.63371.

Reasons to Split a Pair of 8s

Basic strategy suggests to always split a pair of 8s regardless of the dealer’s upcard. In most cases, this is players’ best move as having a total of hard 16 is a breaking hand. This places them in a very unfavourable position as they can easily go bust. Any card above 5 will cause them to lose the hand if they decide to risk by hitting .

The odds in such cases are not favourable for the players as they have more than 50% chance of surpassing 21. All playing decisions (hitting, standing, doubling), bar splitting, result in negative expectation for the recreational blackjack player. Meanwhile, splitting your 8s yields a positive expected value for basic strategists against lower dealer upcards deuce through 7.

As for splitting the 8s versus higher upcards 8 through ace, the expectation is negative but it is still better than that for hitting as some gambling authors would suggest. Both moves lead to long-term losses for the basic strategy players, but splitting helps you reduce the damages to your bankroll over the long haul. The chances that when this pair is split against high upcards the result will be any different aren’t too promising, either. However, splitting is the lesser of the two evils.

The bottom line is that this move gives players the opportunity to avoid going bust with one more hit and to have at least one decent hand. Whenever players find themselves in a breaking position, what they should do is split the losing hand into two, hopefully good, ones.

Hard 16 (which a pair of 8s essentially is) is notorious for being the worst possible total in the entire game of blackjack. This is true no matter how you play it. Yet, starting two separate hands, with a total of 8 each, offers better prospects than playing a single one with a total of 16.

You will still lose less money by splitting, compared to hitting, despite the fact you need to post an extra wager to cover the second hand. Of course, splitting does not always work in favour of players, which is why they need to get familiar with the possible outcomes of every hand.

One of the golden rules of basic strategists is to always split paired 8s in all blackjack variations where the dealer is bound to draw to 16 and stand on all 17s. This applies no matter whether the respective S17 game plays with one, two, four, six, or eight decks.

Alternative Move

As already mentioned, some gambling authors would suggest that players should refrain from splitting their 8s and choose to hit instead, particularly when the dealer exposes a solid card like an ace or a ten. The argument of such authors is that there is no point in pouring more money into splitting against such powerful dealer upcards. They would even argue the odds of hitting and splitting are pretty much the same.

However, both basic strategy and established blackjack experts would beg to differ on this subject. Indeed, exceptions are made to the “Always split your 8s” rule but they do not involve hitting. Forfeiting the pair is recommended in some cases, depending on the dealer’s fixed standing position and the value of their upcard. Hitting hard 16 results in long-term losses against all possible upcards of the dealer. Tens and aces are no exception.

Smart players, who insist on accuracy, choose to stick to the basic strategy and split against strong upcards in S17 games due to the fact this move dents their losses the most. Hitting this pair versus tens and aces costs you around £0.54 and £0.52 per every pound you bet, respectively. By comparison, if you split the pair of 8s, your negative expectation drops to £0.48 against the ten and £0.37 against the ace. You can work out on your own which of the two plays is the best one.

Re-splitting

Even though the cases where players can get a second pair of 8s are rare, as previously indicated, they should be prepared for every hand. In such situations, it is worth remembering that the same strategy applies every time they get a pair of cards of the same rank.

If players happen to get another pair of 8s after the split, it is best to resplit them if allowed. Bear in mind that as the rules of the casinos differ, some places may have restrictions regarding this move. The fact that sometimes there are restrictions on resplitting shows that this move can be very favourable to players as long as they know how and when to take advantage of it.

It is crucial to get familiar with the casino rules for blackjack before you play since this way, you will avoid changing your strategy and making less optimal plays. For instance, if players get a second pair of 8s and they want to resplit it but this move is not allowed, the chances that they will misplay this hand are very high.

If resplitting is impossible, they should opt for the second-best move, which is either hitting or standing, depending on the strength of the dealer’s face-up card. The best blackjack variants normally enable you to resplit your 8s three times to up to four individual hands.

The Option To Surrender

Another very reasonable move players can make is to surrender, provided that this option is allowed. The reason why is that having a total of 16 is a breaking hand, which will almost certainly cause them to go bust.

It is a wise move to withdraw if players have a pair of 8s as their hand’s total in most cases will lead to losing the hand. By surrendering, they will at least be able to get half of their money back in such a disadvantageous situation. However, players should take into account that many casinos don’t allow this move due to the benefits it offers them.

If possible, surrendering your 8s is advisable against the ace in double-deck and multiple-deck blackjack games where the dealer must draw to soft 17. Paired 8s against an ace are always a split in single-deck games regardless of the dealer’s standing position.

Conclusion

Sometimes, it can be really difficult to determine which move is the best in a particular situation. Even more seasoned gamblers struggle to say for sure and have second thoughts on some of them. However, this is why gambling is gambling and what makes Blackjack such an interesting and challenging game.

The only way to win in the long term and manage to make a profit is if players strive to improve every time they play. With the appropriate knowledge of the basic rules, a reliable strategy, and good money management skills, they can gain an advantage over the casino and achieve the desired result.

It is important to focus on winning the majority of the hands, not all of them. When there are tough situations, such as having a pair of 8s, players should try and reduce the amount of money they lose to the minimum rather than attempting to necessarily win the hand.

If you’ve spent any time studying blackjack basic strategy, you’ve probably heard that you should always split aces and eights. The goal of this post is to explain why this is the appropriate move in almost any variation of blackjack. It doesn’t matter what the dealer’s face-up card is, by the way. Splitting aces and eights is always the right move.

A Note on “Basic Strategy”

If you’re new to blackjack, you might not have heard what basic strategy is. In brief, it’s a table of the mathematically correct moves to make in any blackjack situation.

You have 2 pieces of information, which are cross-referenced on a blackjack basic strategy chart:

• What’s in your hand
• Half of what’s in the dealer’s hand

In your hand, you have a soft total, a hard total, and possibly a pair of cards of the same rank.

In the dealer’s hand, you know one of his or her cards. In almost all blackjack variations, the dealer gets one card face-up.

The correct decision in any of these situations is the one with the highest mathematical expected return.

If you make the correct mathematical decision on every hand, you reduce the house edge that the casino has over you to its lowest possible number—usually between 0.5% and 1%, depending on the rules at the casino.

How Splitting Cards in Blackjack Works

One of the options you have in blackjack is “splitting” a pair of cards of the same rank. When you do this, you start 2 hands. The first card of each of those hands is one of the 2 cards from your original hand.

Should You Split 9s In Blackjack

You also must put up another bet when you split your hand. You then play each hand independently of each other.

You could win both the new hands, lost both the new hands, or lose with one and win with the other.

Basic strategy tells you that you should never splits 4s, 5s, or 10s. It also tells you that you should always split aces or 8s.

Why You Do the Things You Do in Basic Strategy

Basic strategy has been derived by mathematicians and computer programs who run simulations of millions of hands. They look at the results of those hands to determine the playing decision which wins the most or loses the least amount of money in each situation.

But some of the thinking behind basic strategy makes sense, too.

Here’s an example:

You should never split 10s, no matter what the dealer’s upcard is.

Why not?

You have a hard total of 20. The only possible hand that could beat that 20 is a 21. It’s such a good hand that it’s hard to imagine improving your chances by creating 2 new hands—even though any hand which starts with a single 10 is going to turn out pretty good.

Let’s think about how many cards left in the deck will improve on a hard total of 20.

If you get a 10 on your new hand, that’s great. You now have what you would have had originally. You have 14 cards left in the deck which are worth 10 points. (There are 16 of those cards to begin with, but you already have 2 of them.)

If you get an ace, that’s even better. You get 3 to 2 on your payout. That’s not as likely as getting another 10, though. There are only 4 aces in the deck.

All the other cards, though, give you a worse hand. That’s a total of 32 cards which will give you a hand that’s not as good as your original hand. That’s about a 65% chance of getting a hand with a total not as good as you started with.

And some of those cards are rough, too. You get a 2, 3, 4, 5, or 6, and you have a stiff hand. That’s a hand that’s unlikely to beat the dealer unless you hit it. But it’s also a hand that has a good chance of going bust if you hit it.

This kind of thinking—about how good your total is, and about how the remaining cards in the deck might affect that total—is crucial to an understanding of basic strategy.

Let’s look at one more example:

You should also never split 5s. That’s a hard total of 10.

That’s a lousy total as it stands, but it’s a total you can’t bust with an additional card. Any card will improve your total, and a lot of those cards will give you a hand you’ll feel good about standing on. You have 16 cards worth 10 left in the deck, and 4 aces. That’s 20 cards that will give you a total of 20 or 21.

If you get a 7, 8, or 9, you also have a solid total you can feel good about. That’s another 12 cards, for a total of 32 cards which will improve your total.

Even if you get a 2, 3, 4, 5, or 6, it’s not the end of the world. You’re liable to get a stiff hand, but it’s not as likely as getting a good hand.

But what would happen if you split those 5s?

You’d wind up with 2 hands with a starting card of 5. It’s impossible to get a card on top of that to make you feel good about your hand. If you get an ace, you have a soft 16, and that’s probably the best you can hope for. If you get a 10, you have a total of 15, which is awful. It won’t beat the dealer, and it’s likely to bust when you take another card.

The other, lower value cards don’t help much either. A 9 gives you a total of 14, which is also awful. An 8 gives you a total of 13. Nothing to write home about there, either.

What Happens When You Split Aces

A hand of 2 aces that you don’t split is just a soft total of 12. That’s not terrible, because it’s hard to bust. But it’s not likely to win.

On the other hand, if you take a mediocre hand and turn it into 2 really good hands, you’ve accomplished something.

And let’s face it—anyone with a brain in his or her head knows that an ace is the best possible starting card in blackjack. If you get a 10 on top of that ace, you have a blackjack, which pays off at 3 to 2.

In fact, in a lot of casinos, you can split those aces and then immediately double down on them.

Remember, you have 16 cards worth 10 points each in the deck—more than any other specific total. Most of the cards aren’t worth 10 points, but enough of them are that you can be optimistic about getting that natural at least some of the time.

But if you miss your 10, you still wind up with a good hand almost every time. If you get a 9, you have a total of 20, which is a great hand. If you get an 8, you have a total of 19, which is good. Even a 7 leaves you with a total of 18.

If you get a 6 or less, you don’t have such a great hand. But because one of the cards is an ace, you’re going to be able to try to improve that hand with little fear that it’s going to bust.

What Happens When You Split Eights

Should You Always Split 8's In Blackjack

First, if you have a hand made up of 2 eights, you have a hard total of 16. That’s a lousy hand. You’re probably going to stand rather than take an additional card. Either way, you’re unlikely to win. If you stand, the dealer will probably wind up with a better total than you. If you hit, you’re probably going to bust.

On the other hand, if you split this into 2 new hands, each with a starting card of 8, a lot of good things can happen.

16 of the cards in the deck are worth 10 points, so you have a reasonably good chance of getting a total of 18 on your new hand.

If you get a 9, you have a total of 17, which is also a big improvement.

If get another 8, which is unlikely, since you already have 2 of them, you’re no worse off than you were to begin with.

But What If the Dealer Has a 9 or 10 Upcard?

Thoughtful blackjack players might wonder why you would split 10s or 8s in the face of a dealer’s upcard of 9 or 10. After all, the odds are good that the dealer will beat you. Aren’t you just losing twice as much money by splitting in this situation?

The crucial factor to keep in mind is whether you’ll win more in the long run or lose more in the long run by making a specific decision. In the case of a dealer 9 or 10, you’re not trying to win more often. You’re just trying to lose less often.

This is built into the logic of the game and into the logic of basic strategy.

Here’s an example:

Any total of 12, 13, 14, 15, 16, or 17 is probably going to lose to the dealer—more than 51% of the time, anyway. And you’ll see one of those totals a little more than twice out of every 5 hands.

The best you can do in that situation is try to lose less often than you would if you made another decision.

Let’s say you face a dealer upcard of 9, 10, or ace with a pair of 8s. If splitting weren’t an option, the correct strategy would be to hit the hard total of 16. You’d lose $52 out of every $100 you bet in this situation. (It seems like you’d lose more often than that, even, but remember—the dealer doesn’t always have an ace in the hole.)

But if you split that into 2 hands that each start with an 8, you’ll lose $43 of every $100 you bet in this situation. Yes, you’ve put twice as much money into the situation. But each of those should be thought of as 2 bets with a better on-average outcome than the one bet with a terrible possible outcome.

These are both losing situations, but one situation saves you $9 on average per $100 bet.

In fact, you’ll sometimes get some grief from the other players or even the dealer when you make this decision. The best thing to do is ignore them. They mean well, but they clearly don’t understand the math behind the game or behind basic strategy.

As an aside, I used to employ a former blackjack dealer to clean my house. Her understanding of the game and the math behind it was abysmal. Don’t make the mistake of thinking that just because someone deals blackjack for a living means they understand how to minimize the house edge.

Always follow basic strategy, and always ignore other people who advise you to do something different.

Splitting Aces Is a No-Brainer, Though

Do You Always Split 8's In Blackjack

Even people who are a little confused about basic strategy in blackjack understand the logic behind splitting aces. You’ll occasionally run into someone who’s too timid or too under-bankrolled to make the mathematically best choice. If you’re in a helpful mood, you might offer to cover the extra bet for that person at no risk to them. The dealer might or might not allow this. The player might or might not take you up on it.

But if he or she does, it’s a good deal, because you have an excellent chance of getting that 3 to 2 payout for a blackjack.

If you’re counting cards, you might even be in a situation where the deck is rich in 10s. In this case, such a play makes even more sense. That’s the reason card counting works, after all—it measures the ratio of 10s and aces in the deck to the number of lower cards in the deck.

Splitting and Re-Splitting Aces

It’s possible when you split aces to get another ace on top of one or both of your new hands. In that case, if the casino allows it, you should split again. You could easily wind up with 4 hands in play at a time, all of which stand an excellent chance of turning into a blackjack.

Should You Split 10s In Blackjack

Not all casinos allow this, and it’s easy to see why. At many casinos, after you split aces, the casino only lets you take one additional card. If you were to get another ace and not have the option of re-splitting, the casino has you. A total of 12 versus almost any dealer total is a likely loser.

Luckily, that doesn’t come up often enough to worry about it. Just remember that you always split aces, regardless of the dealer’s upcard, and you’ll be fine.

Conclusion

And that’s my explanation of why you should always split aces and 8s when playing blackjack. The dealer’s upcard doesn’t matter in any situation. You’ll either win more money more often or lose less money in the long run.

Splitting aces is an aggressive move that increases your winnings dramatically. Splitting 8s is a defensive move that helps to minimize your long-term losses.

Both are the mathematically correct play.