The game of classic blackjack that is the version used in iphone blackjack is played with a single deck of cards. The aim of the game is for players to end up with cards in close as value to 21 more possible while not going over the value of 21 and holding a higher hand than that of the dealer. To begin with the player is dealt two cards face up and the dealer receives two cards, one face up and one face down. Bets have already been placed at this stage. The player then has to decide how to proceed based on the cards that he is holding and the upturned card of the dealer. There are a number of different options for the player to choose from that include splitting, taking out insurance and doubling down that is in effect adding an additional bet and receiving one more card to finish the game.