Double Attack Blackjack is variation to the Spanish twenty one, that when played pays even money on the hand blackjack, it also gives the player the opportunity to double their first bet after seeing the dealers face up card. This variation of blackjack also features a bonus side bet know as bust it, bust out or buster.
This is placed on whether or not the dealer will be bust on their third card. To place this bet the dealers up card must not have been dealt yet. This side bet will also pay based on the rank of the card dealt. If the third card is a ten it will pay three to one, a nine it will pay six to one, an eight will pay eight to one, a seven pays ten to one and a six pays fifteen to one. There is one additional payoff to this where if the dealer has an eight in his hand and draws another in the same color then the odds are fifty to one.
If a player bets with the bust it side bet then this could payoff in accordance to how many cards the dealer has when the bust and are as follows. Three to four cards pays two to one, five cards pay four to one, six cards pay twelve to one, seven cards pay fifty to one and eight cards psy two hundred and fifty to one.