Counting cards in blackjack is an advanced strategy that has fascinated and challenged casino enthusiasts for years

04 oktober 2023
Peter Mortensen

If you are interested in casino games and are looking to up your blackjack skills, understanding how to count cards can give you a significant advantage at the tables. In this article, we will delve deep into the world of card counting, exploring its history and providing essential information for anyone interested in improving their blackjack game.

What is Card Counting in Blackjack?

Card counting is a mathematical strategy used to keep track of the ratio of high to low-value cards remaining in a deck of cards. It is primarily used in blackjack to help players determine when the odds are favorable for them to increase their bets. By keeping track of the cards that have been played, players can make informed decisions that can lead to better chances of winning.

It’s important to note that card counting is not illegal, contrary to popular belief. However, casinos do not appreciate card counters and may take measures to prevent them from playing. Counting cards requires a high level of skill and practice, and it’s essential to be aware of the rules and regulations in different casinos before attempting to use this strategy.

The Evolution of Card Counting in Blackjack


The origins of card counting in blackjack can be traced back to the 1950s when a group of mathematicians and scientists discovered that by keeping track of the cards, they could gain an advantage over the casino. The first widely recognized card counting system was created by Edward Thorp, a mathematics professor, in his book “Beat the Dealer” published in 1962.

Thorp’s system, known as the Ten-Count system, was relatively simple and provided players with a way to make better decisions based on the cards dealt. Since then, numerous card counting systems have been developed, each with its own complexities and advantages. Some popular systems include the Hi-Lo system, the Knock-Out system, and the Omega II system.

Understanding How Card Counting Works

To understand how card counting works, it’s crucial to familiarize yourself with the concept of “true count.” True count is calculated by dividing the running count by the number of decks remaining in play. The running count is determined by assigning a value to each card that is dealt and keeping a running tally as the cards are played.

For example, in the Hi-Lo system, cards from 2 to 6 have a value of +1, cards from 7 to 9 have a value of 0, and cards from 10 to Ace have a value of -1. As cards are dealt, the player keeps a running count and adjusts their bets accordingly when the true count indicates a favorable situation.

Card Counting Strategies and Techniques

There are various card counting strategies and techniques that players can employ. Each system has its own advantages and complexities, and it’s essential to choose one that suits your playing style and abilities. Here are some popular card counting systems:

1. Hi-Lo System: This is one of the most widely used card counting systems. It assigns values to the cards and keeps a running count, allowing players to adjust their bets based on the count.

2. Knock-Out System: Similar to the Hi-Lo system, the Knock-Out system assigns different values to the cards and keeps a running count. The main difference is that it does not require players to convert the running count into a true count.

3. Omega II System: The Omega II system is a more complex card counting strategy that assigns values to the cards ranging from +2 to -2. This system requires more skill and practice but can provide more accurate results.

It’s important to note that card counting is not a foolproof strategy and does not guarantee winnings. It is simply a tool that can increase the chances of winning over the long run. It requires practice, discipline, and a thorough understanding of the system you choose to employ.

In conclusion, card counting in blackjack is an advanced strategy that can give players an advantage at the tables. While it is not illegal, players should be aware of casino rules and regulations before attempting to use this strategy. Understanding the history and evolution of card counting can provide valuable insights into its effectiveness. Remember, card counting is not a guaranteed way to win, but when used correctly, it can improve your odds at the blackjack table. Practice, study different systems, and approach the game with a disciplined mindset to maximize your chances of success.


Does card counting guarantee winnings in blackjack?

No, card counting is not a guaranteed way to win. It can increase your odds over time, but success also depends on other factors such as strategy and luck.

Is card counting illegal in blackjack?

No, card counting is not illegal. However, casinos may take measures to prevent card counters from playing.

Which card counting system is the easiest to learn?

The Hi-Lo system is one of the easiest card counting systems to learn and is widely used by players.

Flere Nyheder