Now that we have discussed the legality of card counting, we can move on to other basics about blackjack—no need to worry about being arrested for card counting now.
Now we will go over where card counting can and cannot be used.
If you want to use card counting and are dead set on using it, you will need to make a trip to a brick and mortar casino because card counting will not work with online blackjack.
I have no doubt that you have heard the rumor that card counting only works when you know how many decks are being used, and that it makes card counting possible for the online blackjack games that do tell players how many decks are being used.
This is not accurate.
Knowing the number of decks in play does not have any impact on the success of your card counting abilities—regardless of whether you play blackjack online or in a brick and mortar casino.
What does make a brick and mortar casino necessary is that cards are discarded from play. In online blackjack, cards are never discarded; the Random Number Generator (RNG) pulls from all possibilities when ‘dealing’ cards in the game. Say for example you were just dealt a 4 of spades and a 2 of clubs. In a game of blackjack in a casino, those cards would be removed from play. Granted, with multiple decks there is a chance those exact cards could show up again.
But the point is that two low cards would have been removed from play, which increases the ratio of high cards left to be played.
That is the who purpose of card counting—to give players an idea of whether the remaining cards are rich in high cards or low cards. Knowing this helps them to choose how to wager on their rounds. And since any cards could be dealt in online blackjack, card counting is ineffective. If cards are not removed from play, who can you tell if the remainder of the deck is rich in high or low cards regardless of the number of decks in play?
You cannot, and that is the whole reason why card counting cannot be used with online blackjack. Knowing the facts about card counting can pay off in that avoiding the rumors about card counting that could interfere with the effectiveness of the skill. And interfering with the effectiveness can interfere with the success of the skill.