Among casino games, blackjack has one of the lowest house edge which explains why it is so popular amid regular players. If you were to simply focus on the cards and stick to the most straightforward way of playing blackjack, this tiny edge would still be enough to crush you. The only way of staying profitable is by taking advantage of a couple of tools that the game presents the players with. One of the most important things is knowing when to double down, because this is the situation when you can double your bet when you have the upper hand with real money blackjack.
Online casinos allow players to double down on any two cards, and some go as far as to allow them to double down after splitting. The player needs to pay attention to what face up card the dealer shows, and decide whether to double down or not depending on this card’s value. Speaking of which, the worst cards that the dealer might have are two, three, four, five, six as these cards have the tendency of going bust twice as often as the rest of the cards.
Doubling down when you have a 10 or an 11 against a dealer holding cards that have a total value of nine or 10, decreases your edge and this is why these coin flips shouldn’t be abused. Mathematically, the player still holds the upper hand and in conjunction with the small house edge in blackjack, these duels are as fair as they get. The rule of the thumb says that no matter how small your edge might be, you shouldn’t be afraid to push the envelope and double down without worrying about the money invested.
If your cards total ranges between nine and 11, you shouldn’t be afraid to risk twice as much because these are the rare opportunities when the dealer is the underdog. The only exception to the rule is when the dealer has an Ace, while it is also recommended for the player to exercise caution when the player’s total standard and the dealer has an Ace.