When Should You Split In Blackjack
- When Should You Split Aces In Blackjack
- When Can You Split In Blackjack
- When Should You Split 20 In Blackjack
- When Should You Split Nines In Blackjack
Splitting is an interesting component of playing Blackjack that allows you to enter two hands in the same round if the first two cards in your initial hand are of the same value. So what is splitting, when can you do it and when should you? Read on to find out.
- Should You Split Two's? The same strategy for pairs of threes and sevens also applies to two's. Split the two's versus a dealer two through seven, and hit the two's versus a dealer eight or better.
- Splitting in blackjack is pretty easy once you get the hang of it. If you are dealt a pair, you may have the option to ‘split’ it to form to two hands. Once you split, you will be dealt two new cards and carry on betting on both hands. So, a second wager will be placed, equal to your original bet. Let’s take the following example: Suppose.
- However, unless you count cards, the odds of blackjack are against you, even if you are a perfect player. By chance, the outcome may sway in your favor from time to time; but the rule is: the more you gamble the more money you lose. Gambling Addiction: Gambling is addictive, really. If you find yourself spending an unreasonable amount of time.
- What splitting in blackjack means is that when your hand consists of two cards with similar value, you can split them by placing additional bet, creating two hands that will be played separately. The option to split is of enormous value; if it’s used wisely of course.
Our full blackjack strategy guide will give you lots of pointers as to when you should hit and when you should stand or double down. However, to get you started, here are two quick pointers to.
What is splitting in Blackjack?
A player can split in a round of Blackjack if their opening two cards are of the same value. This means any pair from Ace through to nine and any two cards valued at ten (for instance, a ten and a Queen).
If a player decides to split, they must place a second bet for that round of the same value as their original bet, essentially doubling their stake. The two cards are then treated as the first card of two new independent hands that are played out separately. Should one of these hands become a pair, the player is allowed to split again and enter a third hand whilst tripling their stake, and so on.
Generally, you are allowed to hit or double down on a split hand, with the exception of if you have split two Aces, in which case the two hands are often not allowed to consist of more than two cards. In some cases, a Blackjack achieved on a split hand will not count as such, and simply be valued at 21.
In a game of Blackjack, opportunities to split will likely be rare. You have an approximate 0.5% chance of getting any pair from Aces to nines in your opening two cards, and a 9.4% probability of getting two cards valued at ten.
When to split in Blackjack
It is arguably universally agreed that there are two scenarios in which you should always split: if you have a pair of Aces or a pair of eights.
You must carefully consider if you are going to split in Blackjack.
While you are likely to be prohibited to getting only one more card on two split Aces, this nonetheless presents two separate opportunities to get Blackjack. There will be an approximate 30.4% chance of a hand starting on an Ace getting Blackjack, equating to a 51.6% probability that at least one of your two hands will do so.
Meanwhile, a pair of eights presents a value of 16. This is widely considered to be the weakest opening hand in Blackjack, by virtue of the fact it is one beneath the minimum value of 17 that the dealer is required to finish on (meaning it is always likely to lose) but has a significant risk of going bust when hitting. Splitting a pair of eights averts this problem.
For a pair of nines, you should split in all circumstances unless the dealer’s face up card is a seven, worth ten or an Ace, in which case you should stand. If the dealer’s face up card is a seven, the most likely outcome is that their second card will be worth ten, meaning they will be forced to finish the round with a hand worth 17, less than your hand’s value of 18.
If the face up card is worth ten or an Ace then they have a chance to get Blackjack, meaning standing on a value of 18 is the option that presents the best chance of winning.
With the exception of pairs of fives, for pairs between two and seven you should look to split when the dealer’s face up card is certain values between two and seven and they are at the greatest risk of going bust. The information discussed in the last few paragraphs is summarised in the table below:
Blackjack splitting strategy
NB: This table assumes four to eight decks in play and that the dealer hits on a soft 17.
When not to split in Blackjack
Under no circumstances should you split on a pair of tens. An opening hand worth 20 is very strong and can only be beat by a Blackjack or a three-card hand worth 21, and the dealer has just an approximate 12.2% chance of getting this in any given round. When splitting a pair of tens, you are likely to end up with two separate hands both worth less than 20, essentially spurning a strong opportunity to win the round by putting yourself at risk of doubling your losses.
You should also never split on a pair of fives. In this situation, the best approach is to double down, as this will provide an approximate 53.8% chance of finishing your turn with a strong hand containing a value of 18 or higher. The exception here is if the dealer’s face up card is worth ten or an Ace and they therefore have a chance to get Blackjack, at which point you should hit.
For pairs of twos, threes and sevens you should not split if the dealer’s face up card is at least an eight, and for pairs of fours and sixes you should not split if the dealer’s face up card is at least a seven. For pairs of fours, you should also never split if the dealer’s face up card is beneath five, at which point they have a plausible opportunity to build a high value hand via three cards.
Enhance your Blackjack strategy
If you’re looking for general advice on how to play Blackjack, read our guide to Blackjack. If you want to learn more on how to inform your Blackjack strategy, remember to read our articles on how to double down and surrender, alongside how to place a side bet and insurance bet.
We also have an article outlining an advanced Blackjack strategy. If you want to learn more about Blackjack beyond how to play the game, you can read about the history of Blackjack.
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Even players with little or no knowledge of basic strategy in blackjack understand one thing:
You always split aces and 8s in blackjack.
Of course, you can always find contrarians who disagree with everything, no matter how solid the math behind it is. This post is for people who want to understand in detail why you should always split aces and 8s in blackjack.
A Pair of Aces in Blackjack Is a Soft Total of 12
I don’t know a single blackjack player who gets excited about having a hard or soft total of 12. It’s a hand that’s going to bust a lot of the time when you hit it, because there are at least 16 cards worth 10 points in the deck. (That’s almost 1/3 of the cards in the deck.)
On the other hand, if the 1st card of a hand is worth 11 points, you stand a good chance (1/3 again) of winding up with a total of 21. Even if the game doesn’t pay off at 3 to 2 for blackjack after splitting, that’s still an excellent hand that the dealer probably won’t beat. The best the dealer can do is push.
The thing about splitting, though, is that you must put up another bet. Low rollers who are under-bankrolled sometimes don’t like this. They don’t WANT to risk additional money on a single hand, even if that hand becomes 2 new hands.
They’re making a mistake, and a big one. Not splitting aces does serious damage to the house edge for the game.
In fact, the house is so convinced of how strong a play this is that they have strict rules about what you can do after splitting. For example, you’re not allowed to take more than one additional card after splitting aces. And no one understands the math behind these casino games than the casinos themselves, trust me.
Casinos also usually restrict you from doubling down after splitting. You usually can’t resplit aces if you get another ace again, either.
None of those minor rules variations, matter, though. It’s still always the correct strategy to split a pair of aces at the blackjack table.
A Pair of 8s in Blackjack Is a Hard Total of 16
If you think blackjack players are unenthusiastic about a total of 12, watch them shift uncomfortably in their chairs when they have a hard total of 16. There’s no good way to play a hard total of 16. If you stand, the dealer will probably beat you with a higher total. If you hit, you’ll probably bust.
But when you have a pair of 8s, you get to start 2 new hands, both of which have an 8 as their starting hand. 1/3 of the time, you’ll get a 10, which will make your new total a hard 18, which is a respectable hand for any blackjack player in almost any situation.
Also, even if you don’t get a 10, you might get an ace, which gives you a total of 19—which is, of course, even better than a total of 18.
Even if you get a 9, your hand improves to a 17, which is respectable, if not ideal.
Most casinos don’t have the same restrictions that apply to your “after-splitting” hands, too.
When Do You Deviate from Basic Strategy When It Comes to Splitting Aces and 8s
If you’re not counting cards, you NEVER deviate from basic strategy when it comes to splitting aces and 8s. Most of the time, even if you ARE counting cards, you still always split aces and 8s.
But there are exceptions if you’re counting cards.
If your count is negative and the dealer has an 8, 9, or 10 showing, you just hit the aces instead of splitting them.
Why is this?
When the count is negative, it means that there aren’t as many 10s left in the deck. Part of what gives splitting aces its kick is the possibility of getting that total of 21.
You run the risk of turning a single likely loser into 2 likely losers with twice as much money in action.
If the count is positive, you will sometimes not split a pair of 9s. If the dealer has a 9 or 10 showing in this situation, he’s more likely to have a 10 in the hole. (That’s what the positive count means, after all.) This means you’re probably facing a 19 or 20.
When Should You Split Aces In Blackjack
When you split those 8s, yes, you’ll probably get a couple of hands that total 18.
But that does you little good against a 19 or 20.
And remember—those are only correct decisions if you’re counting cards and know what you’re doing.
An Argument against Splitting Aces in Certain Situations
Suppose the dealer is showing a 10, and you have 2 aces.
Most people assume that the dealer’s down card is also a 10, so you’re probably facing a dealer total of 20.
If you split those aces, the only way to win both those hands is by getting a 10 in each of them. The probability of that is less than 1/3 for each, or about 1/9 for both of them.
When Can You Split In Blackjack
What this argument misses is that a soft total of 12 is no fun to play in that situation, either. Sure, you don’t have to invest extra money to get those extra cards, but the trade-off just plain isn’t worth it.
Conclusion
When Should You Split 20 In Blackjack
When it comes to blackjack, you should always follow basic strategy—except when you shouldn’t.
Of course, the only time you shouldn’t is when you’re counting cards. In rare cases when you’re counting, you’ll deviate from basic strategy.
When Should You Split Nines In Blackjack
And one of the 1st rules of basic strategy is that you ALWAYS split aces and 8s.
That’s an easy one to remember.
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