Splitting Pairs

The Split Move in Blackjack and Its Intricacies

Although blackjack is relatively straightforward, players can encounter puzzling situations that require specific actions to reduce the house advantage. Playing without a strategy is possible, but it can significantly reduce your long-term chances of success and may shorten your playing sessions.

Fortunately, blackjack players have developed several strategies, with basic strategy widely recognized as the most effective system. Making decisions according to basic strategy can help reduce the house edge, minimize your losses, and make your bankroll last longer. If you look at a basic strategy chart, you will notice that “splitting” is one of the recommended moves for certain pairs.

The split option can often improve your chances of winning. However, splitting is not the optimal move for every pair. If you are curious about this move and how to use it correctly, read the rest of this article.

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The Splitting Move

When you are dealt two cards of the same rank, you can split them into two individual hands. These become separate hands, and you should treat them as such by applying the appropriate strategy to each one. Whenever you split a pair, you must place an additional bet equal to your original wager. After one additional card is dealt to each hand, you play the hands separately.

In most cases, if you receive another pair, you are allowed to split again, a process known as re-splitting. It is important to understand the best approach for different pairs so that you can handle these situations with confidence.

Strategy for Splitting Pairs

As noted above, if you want to improve your chances of winning and get the most from every hand, you should use an effective strategy and apply it correctly throughout the game. When you have two cards of the same rank, you should treat the combination differently from other hands. Some pairs are highly beneficial and should always be split, while others should never be split. Let’s examine some of the pairs you may receive and how to play them correctly.

Best Moves for a Pair of 2s, 3s, 6s, and 7s

We will discuss pairs of 2s, 3s, 6s, and 7s together because their strategies are similar. Grouping pairs with identical or similar strategies makes the correct moves easier to remember. When holding any of these pairs, your two main options are to split or hit. With a pair of 2s, 3s, or 7s, you should split when the dealer’s up card is from 2 through 7. This move is beneficial because the dealer is in a weak position.

In these cases, you should try to maximize your profit because your chances of winning are good. When the dealer has an 8, 9, 10, or ace, your best move is to hit. If you split the pair in these situations, the totals of the two new hands are unlikely to be sufficient to beat the dealer.

Receiving two 6s as your first two cards is an unfavorable start because your risk of busting is relatively high if you hit. The strategy for this pair is the same as for the other pairs mentioned above, except when the dealer shows a 7. In that case, you should hit. You should avoid splitting because you are likely to end up with two weak hands.

Best Moves for a Pair of 4s

When you have two 4s, splitting can be one of the best moves, but only in two specific situations. If the dealer’s up card is a 5 or 6, it is best to split the pair and form two new hands. The reason is that splitting the cards gives you a good chance of creating an advantageous situation in which you can double down. In all other situations, you should hit because more cards in the deck will improve your hand than cause you to bust.

Best Moves for a Pair of 9s

If you receive two 9s, you should usually split because each new hand will start with a 9, which is a fairly strong position. Both new hands have a decent chance of forming a strong total and beating the dealer, especially when the dealer is in a weak position. If the dealer’s up card is from 2 through 6, or an 8 or 9, you should split. If the dealer is showing a 7, 10, or ace, it is advisable to stand. These moves are optimal when playing single-deck blackjack in which the dealer stands on all 17s. Any other move is more likely to result in a loss. By standing, you have a good chance of beating the dealer or finishing with the same total, resulting in a push.

Splitting a Pair of Aces

An ace is the most powerful card in blackjack because it provides players with flexibility. Aces can count as 1 or 11, depending on the player’s needs, and can form soft hands. A pair of aces can therefore count as 2 or 12, neither of which is a good starting total. This is why splitting a pair of aces is your best option regardless of the dealer’s up card and the blackjack variation you play. Splitting a pair of aces gives you two strong separate hands and reduces the house edge by 0.19%.

Once you split the pair, each new hand starts with an ace and receives one additional card. Some casinos allow players to re-split aces if either new hand is dealt another ace. However, this rule is rare because it further increases players’ chances of winning and reduces the house edge by 0.08%.

Ten-valued cards significantly outnumber cards of other values in a blackjack deck. Therefore, you have a good chance of drawing a 10 and forming a total of 21. In single-deck blackjack, there are 16 ten-valued cards. After you are dealt two cards and the dealer holds one, 49 cards remain in the deck. If all 16 ten-valued cards remain, you have a 16/49 = 0.3265 × 100 ≈ 32.65% chance of drawing a 10 and forming a total of 21. This is one reason why it is better to split aces.

Splitting Paired 8s

If you are interested in playing blackjack, you have probably heard that a pair of 8s is one of the most difficult hands to receive. But why is this hand so problematic? A pair of 8s is equal to hard 16. The risk of going bust if you do not split the pair is high, making hitting an unattractive option. Standing is also not the best move because the hand is not strong enough, and the dealer has a good chance of finishing with a higher total. Surrender may be an option, but only when the dealer’s up card is an ace or 10 and the dealer hits on soft 17.

According to basic strategy, splitting a pair of 8s is the correct decision when the dealer’s up card is anything from 2 through 9, regardless of the blackjack variation you are playing.

Never Split a Pair of 5s or 10s

When it comes to a pair of 5s or 10s, splitting is not a good idea. A pair of 5s gives your hand a starting value of 10, so you have a good chance of improving it without busting. If you draw an ace, your hand will total 21. If you split paired 5s, however, you will have two separate hands, each with a starting value of 5. Since splitting is not the optimal move, you should either double down or hit, depending on the dealer’s up card. If the dealer holds anything from 2 through 9, you should double down. Hitting a pair of 5s is the best move when the dealer’s up card is a 10 or ace.

Of all the pairs you can receive while playing blackjack, a pair of 10s is the most common because ten-valued cards are the most numerous in the deck. Therefore, you should know how to act when you receive paired 10s. A pair of 10s is a very strong hand because it totals 20. Splitting paired 10s gives you two separate hands, each with a starting value of 10, which puts you in a less favorable position.

Rule Variations of Splitting in Blackjack

The rules for splitting can vary depending on the casino and the version you are playing. In some games, you can split any pair. However, aces may be split only once. It is always best to check the rules for splitting aces because they are two of the most powerful cards in the deck. If split aces produce a two-card total of 21, the hand is treated as a regular total of 21. The payout is even money rather than the usual 3:2 payout for a natural blackjack.

Some games permit doubling down after splitting, while others do not. In the latter case, the house edge increases by approximately 0.12%. You should always check the rules of the version you plan to play so that you can adjust your strategy accordingly. Rules regarding re-splitting can also differ between casinos. Some games allow you to re-split pairs multiple times, while others restrict you to a limited number of hands.

Conclusion

Blackjack is an exciting game that gives you the opportunity to influence the outcome of each hand by using strategy. One possible starting combination is two cards of the same value. While many pairs should be split, some should remain together. To handle these situations properly, it is advisable to become familiar with the best move for each pair.

FAQ: Splitting Pairs in Blackjack