Knock-Out Card Counting Strategy


An Insider's Guide to Mastering the Knock-Out Blackjack Strategy

Blackjack, a favourite among casino enthusiasts worldwide, offers more than just a game of chance. Unlike other casino games where luck dominates, blackjack players have discovered ways to tilt the odds in their favour. Enter card counting, the blackjack enthusiast's secret weapon. Today, we'll delve deep into the Knock-Out card counting system, a method that promises simplicity and efficacy.

Understanding the Knock-Out Strategy

While the allure of blackjack lies in its blend of skill and luck, mastering card counting can give players a significant edge. The Knock-Out Count, or KO Count, stands out for its straightforwardness, especially for those familiar with the Hi-Lo system.

Traditional card counting demands intense concentration. Juggle running counts, sometimes even multiple at once, and play hands based on the basic strategy. One slip in focus, and you might find yourself misplacing bets, denting your bankroll.

Here's the good news: the KO Count simplifies this. The system classifies playing cards into three categories. Your count will either:

  • Increase by one
  • Decrease by one
  • Remain unchanged

Moreover, in contrast to the conventional Hi-Lo system, the KO Count system assigns the seven as a low card. After counting a full deck using the KO system, you won't end with a 0, but a +4.

Breaking Down the Knock-Out Count System

Let's simplify the KO system's logic:

  1. Low Cards (2, 3, 4, 5, 6, 7): These are assigned a +1 value. As these cards appear, the deck becomes more favourable with high cards, increasing your winning chances.
  2. High Cards (10, J, Q, K, A): These receive a -1 value. Their appearance means more low cards remain in the deck, suggesting caution in your bets.
  3. Neutral Cards (8, 9): These have no value change and are considered neutral.

Remember, with the seven now marked as a low card, starting with a count of +4 is the norm. The betting amount is determined by doubling the number of decks in use. So, in a game with 4 decks, only when the count crosses +8 (or 4×2) should you consider increasing your bets.

Advantages of the Knock-Out Count System

Many players gravitate towards the KO system because of its simplicity compared to other strategies. There's no need for complex calculations or juggling multiple counts. The KO system's streamlined approach helps players maintain their focus and play with confidence.


The Knock-Out Count system offers blackjack players a simpler approach to card counting. By classifying cards into three categories and assigning values, players can keep track of the game's flow and adjust their bets accordingly. The system's ease of use makes it a popular choice among both new and seasoned blackjack enthusiasts.


  1. What makes the Knock-Out Count system unique?
    • The KO system is simpler and doesn't require maintaining multiple counts. Plus, it starts with a count of +4, considering seven as a low card.
  2. When should I increase my bets using the KO system?
    • Your bet increase should be based on twice the number of decks in play. For instance, in a 4 deck game, start increasing bets when the count goes beyond +8.
  3. Is card counting legal?
    • Card counting, including using the KO system, is a strategy and isn't illegal. However, casinos may ask players believed to be counting cards to leave or play other games. Always ensure you're aware of the casino's policy and play responsibly.

the author


the author


Head of Content

Head of Content

Lukas Mollberg, 41, is an industry veteran with over 20 years in the iGaming sector, currently leading as the Head of Content at A stalwart since the early 2000s' Poker Boom, he specializes in affiliate marketing since 2016 and has authored around 300 comprehensive online casino reviews. Lukas's keen eye for detail ensures that no aspect—be it game selection, customer service, or bonuses—is overlooked. His work has become an authoritative resource for both new and seasoned online gamers, offering unbiased and reliable insights. Beyond professional achievements, Lukas brings a wealth of personal interests, like reading and travel, adding depth to his industry perspective.

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