In blackjack, it’s important to split your pair appropriately in order to increase your chances of winning. Here are some guidelines to help you make the best decision:
If you are playing against a single opponent, it is usually best to split your pair even if you have a slightly better hand. By splitting your pair, you increase the chances that at least one of your hands is a winner.
If you are playing against more than one opponent, it is usually advantageous to split your pair as follows: If you have an Ace and a 2 or 3, it is best to split the pair. An Ace and a 4 or 5 can also be split, but not as easily.
If you have any other combination, such as an Ace and a 6 or 7, it is usually best to keep the card together. This way, if one of your hands is a loser, the other hand will still be in good shape.