There are going to be some quite different rules attached to various different blackjack game variants you can take a look at this site access and pay online in regards to how you can play off any split Aces. With that in mind you should always be aware of those player rules before you start to play any blackjack game as it will have an effect on the house edge of that variant you are playing, in either a positive of negative way. Just a bit more to learn. When a player can win the game on their next go, they have to say "Last cards" or knock on the table. If they neglect to do this, they cannot go out on their next go, but must lay their card or cards and then pick up one instead. If they do call, they are free to win on their next go. Most Liberal 21 allow double down after splitting and re-splitting aces. As mentioned, these games short pay on a natural blackjack. Triple Attack Blackjack allows double down on split aces but does not allow players to hit them.