Multiple Re-splitting

If a pair appears in a hand, many casinos practice the split rule which allows the pair to be split into two different hands with a bet on each. Some casinos will then allow a hand to be split again (re-split) if the next twist returns another pair making a total of three hands and three bets and then re-split a hand again if dealt a further pair. Different casino rules may or may not limit the number of hands a player is allowed to create by re-splitting one of his hands.

Twisting/re-splitting split aces

After the aces are split, the typical rule is that there will be a single card dealt, therefore the player cannot do anything with it. Rule variations sometimes allow re-splitting the aces and hit split aces too. By allowing Aces to be hit the casino edge is decreased by approximately 0.13%, and Aces re-splitting lowers the percentage by only 0.03%.
The house advantage of not allowing the player to twist Aces is 0.13% and not allowing the player to re-split Aces is worth 0.03%. That’s why the most popular house rule is not to allow either the twisting, doubling or re-splitting of split Aces. Some variants of the rule exist including allowing the re-splitting and twisting of Aces.