Dynamic formats of online blackjack

A blackjack round begins with each player placing a bet. The dealer deals everyone including himself 2 cards. Player get them usually face up. One of dealer cards is face up and the second face down.

If the dealer carries a card of value 10 (or an ace) as the up card then it’s possible he owns a blackjack. In that case all players will lose unless they have a blackjack, too. 

If the dealer shows an ace as up card, he’ll let all players to insure their respective hands against it. The insurance bet pays 2:1 if the dealer indeed carries a blackjack (10 as the down card).

If the dealer holds an ace showing and one of the players have a blackjack then the dealer may query if that players wants "even money".

So the player gets an option to immediately be paid for the blackjack at 1:1, or to decline “even money”, and get paid at 3:2, of course, only if the dealer does not carry a blackjack. If even money is refused and the dealer happens to have a blackjack then it is termed a “push”. 

If the dealer & the player carry the same card value, it’s also called as a “push” (tie) and none wins.

Once it is confirmed that the dealer does not own a blackjack then the players, in turn, may opt to play their hands.

The following options are available in a game of blackjack:

• Stand: If a player is assured of his hand as-is, he or she may ‘stand’.
• Hit: If you wish to pull another card, continue till you stand or bust.
• Double: If you think that you need only 1 more card then you may double the bet and then will be dealt another card. This option is only allowed on the 1st two cards, and sometimes on the 1st two cards after splitting. A few casinos let you double any 2 cards, whereas few others restrict doubling hands to values - 9, 10, 11.
• Surrender: Some casinos offer an option to give up on the 1st two cards. If you are not happy with your hand then you may choose to forfeit half the bet & skip that hand. This particular option is usually only offered once the dealer has checked for blackjack.