The optimal strategy for splitting pairs in blackjack depends on the value of the pair and the dealer’s upcard. Aces and 8s are always worth splitting. Splitting Aces gives you a chance for strong hands, as an Ace combined with a 10 or face card results in 21. Splitting 8s is ideal because it avoids a weak total of 16, allowing you to potentially improve each hand. Conversely, you should never split 10s or face cards, as a total of 20 is already very strong, and splitting them reduces your chances of winning. Similarly, splitting 5s is not recommended, since a total of 10 is a good hand to double down on.
When it comes to pairs like 2s, 3s, and 7s, splitting is advantageous if the dealer shows a weak card (2-7). In such cases, you can potentially improve your hand and take advantage of the dealer's vulnerability. For pairs of 6s, splitting is optimal against a dealer's weak cards (2-6), as this gives you a better chance of improving your hand. A pair of 9s should be split if the dealer shows a 2-6, 8, or 9, but you should avoid splitting when the dealer shows a 7, 10, or Ace, as these hands put you at a disadvantage.
On the other hand, splitting 4s is generally not advisable. A total of 8 is a decent hand that can be improved with a hit or even doubled down, so splitting it
When it comes to pairs like 2s, 3s, and 7s, splitting is advantageous if the dealer shows a weak card (2-7). In such cases, you can potentially improve your hand and take advantage of the dealer's vulnerability. For pairs of 6s, splitting is optimal against a dealer's weak cards (2-6), as this gives you a better chance of improving your hand. A pair of 9s should be split if the dealer shows a 2-6, 8, or 9, but you should avoid splitting when the dealer shows a 7, 10, or Ace, as these hands put you at a disadvantage.
On the other hand, splitting 4s is generally not advisable. A total of 8 is a decent hand that can be improved with a hit or even doubled down, so splitting it