Card counting in blackjack is a strategic method used by players to gain an advantage over the casino. While often depicted in movies as a mysterious skill reserved for mathematical geniuses, the basics can be learned by anyone willing to invest time and practice.
Card counting is a technique where players keep track of the relative number of high to low cards left in the deck. By doing so, they can adjust their bets and playing strategy to increase their odds of winning.
How to Count Cards in Blackjack

Understanding how to count cards involves assigning a point value to each card and keeping a running tally known as the “count.” This count reflects the overall balance of high and low cards remaining in the shoe.
1. Learn the Basic Strategy
Mastering the basic strategy in blackjack is fundamental to becoming a proficient card counter. This strategy outlines the optimal decisions to make based on your hand and the dealer’s upcard, aiming to maximize your chances of winning each hand. It involves knowing when to hit, stand, double down, or split pairs, decisions that are statistically proven to give players the best possible outcome over the long run.
Learning the basic strategy is not just about memorizing rules but understanding the underlying principles of blackjack. It provides a solid framework upon which card counting techniques can be effectively applied. By internalizing the basic strategy, players gain confidence in their gameplay and set themselves up for success.
2. Assign Card Values
Card counting systems, such as the widely used Hi-Lo system, assign specific values to each card to track their presence in the deck. In the Hi-Lo system, cards are categorized into three groups: low cards (2-6), which are assigned a value of +1; neutral cards (7-9), assigned a value of 0; and high cards (10-Ace), assigned a value of -1.
Understanding these values allows card counters to mentally keep track of the overall balance of high and low cards remaining in the shoe. This information is crucial for making informed decisions on betting and playing strategies as the game progresses. By practicing the assignment of card values, players develop the ability to maintain an accurate count swiftly during actual gameplay.
3. Sharpen Your Skills
Consistent practice is the key to mastering card counting in blackjack. Regularly practicing with decks of cards at home or utilizing online simulators helps solidify the skills necessary to count cards effectively. It allows players to develop speed and accuracy in maintaining the count while under simulated casino conditions.
Advanced Techniques

1. Deck Penetration: Maximizing Advantage
Deck penetration refers to how deeply the dealer goes into the shoe before reshuffling. The deeper the penetration, the more beneficial it is for card counters. This is because a higher deck penetration allows counters to make more accurate predictions about the remaining cards. To capitalize on this, proficient card counters often seek out games with high deck penetration, increasing their edge over the casino.
2. Bet Sizing: Strategic Wagering
Bet sizing is crucial in card counting strategy. Based on the current count, card counters adjust their bets to reflect the perceived advantage or disadvantage. During favorable conditions, when the count is high (indicating more high cards remaining), counters increase their bets to capitalize on the increased likelihood of winning hands. Conversely, during neutral or negative counts, they reduce their bets to minimize losses. Effective bet sizing not only maximizes potential winnings but also mitigates risks during unfavorable conditions.
Stack the Deck!
Mastering card counting in blackjack requires dedication, practice, and a solid understanding of the game’s strategy. By using the information from reputable sources and committing to improving your skills, you can potentially increase your odds of winning at the blackjack table.
By following these guidelines and consistently practicing, you’ll be on your way to becoming a skilled card counter!