The Art of Card Counting in Online Blackjack

Online blackjack is a popular Venus Casino ฝากถอนออโต้ game that combines skill, strategy, and a bit of luck. While many players rely solely on luck when playing blackjack, some take a more calculated approach through a technique known as card counting. Card counting is a skill that can give players an edge over the house, both in traditional brick-and-mortar casinos and in the digital realm of online blackjack. In this blog, we will explore the art of card counting in online blackjack, discussing its history, methodology, and its application in the virtual casino world.

The History of Card Counting

Card counting is not a new concept. It has its roots in the early 1960s when mathematicians and blackjack enthusiasts like Edward O. Thorp began to develop and refine strategies to beat the game. Thorp’s groundbreaking book, “Beat the Dealer,” laid the foundation for card counting techniques that are still used today.

How Card Counting Works

At its core, card counting involves keeping track of the ratio of high-value cards (tens and aces) to low-value cards (2-6) left in the deck. A deck rich in high-value cards is favorable for the player because it increases the likelihood of getting blackjack (a natural 21) and also raises the chances of the dealer busting. Conversely, a deck with more low-value cards is advantageous for the house.

Card counting techniques vary in complexity, but the most common method used is the Hi-Lo system. Here’s how it works:

  1. Assign a value to each card:
    • Cards 2-6: +1
    • Cards 7-9: 0
    • Cards 10-Ace: -1
  2. Start with a running count of 0 before the game begins.
  3. As cards are dealt, adjust the running count based on their values.
  4. Calculate the true count by dividing the running count by the estimated number of decks left in the shoe.
  5. Make betting decisions based on the true count. Higher true counts indicate a more favorable deck, and you should increase your bets accordingly.
  6. Continue to keep track of the count as the game progresses.

Applying Card Counting to Online Blackjack

Card counting can be more challenging in online blackjack compared to its land-based counterpart due to several factors:

  1. Continuous Shuffling: Many online casinos use continuous shuffling machines (CSMs) that eliminate the advantage of card counting since they shuffle the cards after every hand.
  2. Deck Penetration: The ability to penetrate deep into the shoe (the number of cards dealt before reshuffling) varies among online blackjack games. Some games offer better penetration than others, making them more suitable for card counting.
  3. Speed of Play: Online blackjack games can be much faster than those in physical casinos, which requires quicker calculations and decision-making.

Despite these challenges, card counting can still be a viable strategy for online blackjack if you find the right game and adapt your skills accordingly. Look for online casinos that offer live dealer blackjack with traditional shoe-dealt games instead of CSMs. Live dealer games often provide a more authentic blackjack experience with better opportunities for card counting.


The art of card counting in online blackjack is a fascinating skill that can give players a mathematical edge over the house. While it’s not as straightforward as in traditional casinos, with the right approach and game selection, card counting can still be a valuable strategy for online blackjack enthusiasts. Remember that card counting is not illegal, but casinos may ask you to leave if they suspect you’re using this technique. So, use it wisely and responsibly, and enjoy the thrill of playing online blackjack while sharpening your card-counting skills.

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