How to Count Cards in Blackjack: A Comprehensive Guide for Casino Game Enthusiasts

05 november 2023
Peter Mortensen


For casino game enthusiasts, gaining an edge in games like blackjack can greatly enhance their chances of winning. One technique that has garnered significant attention in this regard is card counting. In this article, we will delve deep into the art of counting cards in blackjack, ensuring that you understand the fundamentals and are equipped with the knowledge required to employ this strategy effectively.

Section 1: Understanding Card Counting in Blackjack


Card counting is a mathematical strategy used to gauge the ratio of high to low cards remaining in the deck during a game of blackjack. By keeping track of these cards, players can modify their bets and playing decisions to maximize their potential winnings. It is important to note, however, that card counting is not illegal but rather frowned upon by casinos, as it provides players with an advantage.

Here are some key points to consider:

1. Concept of Card Values: Each card in a deck has a specific value assigned to it. Face cards like Kings, Queens, and Jacks, as well as the Ace, are counted as -1. Conversely, cards 2 to 6 are assigned a value of +1, while 7, 8, and 9 are considered neutral and have no impact on the count.

2. Running Count: As the game progresses and cards are dealt, players maintain a running count by adding or subtracting the respective card values. The running count provides a snapshot of the card distribution in the deck.

3. True Count: To account for the varying number of decks in play, players convert the running count into a true count. By dividing the running count by the number of decks remaining, players can obtain a more accurate measure of the card composition.

Section 2: Evolution of Card Counting in Blackjack

The history of card counting can be traced back to the early 1960s when mathematicians and statisticians first began exploring its potential in blackjack. One of the pioneers in this field was Edward O. Thorp, who published the book “Beat the Dealer” in 1962. Thorp’s work revolutionized the game of blackjack, introducing the concept of card counting to the wider public.

Key milestones in the evolution of card counting include:

1. The Hi-Lo System: Thorp’s book introduced the groundbreaking Hi-Lo system, which assigned specific values to each card. This system laid the foundation for subsequent counting techniques.

2. Notable Players: Over the years, skilled card counters like Ken Uston and the infamous MIT Blackjack Team gained notoriety for their successful implementation of card counting strategies. Their exploits further propelled card counting into the mainstream.

3. Technological Advancements: With the advent of technology, players have developed sophisticated devices and mobile applications to aid in card counting. These tools provide real-time statistics and advanced algorithms, increasing the precision and efficiency of this strategy.

Section 3: Maximizing the Odds of Becoming a Successful Card Counter

To increase your chances of mastering card counting, consider the following tips:

1. Practice: Card counting requires extensive practice to develop the required speed and accuracy. Utilize online resources, mobile apps, and simulation games to sharpen your skills.

2. Bankroll Management: Card counting alone does not guarantee success. Effective bankroll management and proper bet sizing are crucial to ensure long-term profitability.

3. Disguise Your Actions: Casinos are vigilant in detecting card counters. Vary your bets and playing patterns to avoid suspicion and prolong your playing time.

4. Legal Implications: While card counting is not illegal, casinos hold the right to refuse service or ban players suspected of utilizing this technique. Familiarize yourself with local laws and casino regulations to ensure compliance.


Mastering the art of card counting in blackjack requires dedication, practice, and an understanding of the game’s intricacies. While it can significantly enhance your odds of winning, it is essential to approach this strategy with caution and respect the rules and regulations of the casinos you visit. By utilizing the knowledge and techniques shared in this article, you can embark on an exciting journey towards becoming a successful card counter in blackjack.


Er det ulovligt at optælle kort i blackjack?

Nej, det er ikke ulovligt at optælle kort i blackjack. Det er dog vigtigt at være opmærksom på, at nogle kasinoer har politikker, der forbyder kortoptælling, og de kan vælge at ekskludere dig fra spillet, hvis de mistænker, at du optæller kort.

Er kortoptælling en garanti for at vinde i blackjack?

Nej, kortoptælling giver ikke en garanti for at vinde i blackjack. Det øger dog spillerens chancer for at træffe bedre beslutninger under spillet og opnå en fordel. Kortoptælling handler mere om at forbedre ens edge og tage bedre beslutninger, end det handler om at garantere sejre.

Hvad er den mest almindeligt anvendte metode til kortoptælling i blackjack?

Den mest almindeligt anvendte metode til kortoptælling i blackjack er Hi-Lo-systemet. Dette system baserer sig på at tælle høje kort som -1 og lave kort som +1. Ved at holde styr på kortene kan spilleren få en idé om, hvilke kort der stadig er tilbage i kortbunken og derfor træffe bedre beslutninger om deres indsatser.

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