When playing Blackjack there is a term called Card Counting. The definition
Card counting is a skill that does not come very easy. There are many strategies people use to become sufficient in this.
In the United States card counting is a legal strategy and is not deemed to be cheating. Some casinos however might ban a player if they think they are caught counting cards.
Counting the cards in Blackjack offers the player the opportunity to place larger bets when they feel it is applicable, thus giving them a better chance of winning.
In short a player does not really have to remember the cards which have been played, but in turn they can create a counting system. What this means is that each card has a point number to it, and the player just need to tally up the points.
You can find many eBooks on card counting, some which will offer great techniques. Once you get the one you are most comfortable give it a try and here’s hoping you get Black Jack!