KO Count Card

The Book of British Blackjack written in 1993 by Mohen Zadehkoochak was responsible for introducing the Knockout (KO) Card Counting system to the world, the author referred to his card counting strategy as the “All Sevens” count, he named it so because of the difference between a High Low card counting system and the KO system, that is sevens are no longer neutral cards that have a value of +0 instead they now poses a positive value of +1. The advantage provided by the KO card counting system is that there is only one true count, the need to convert the running count into the true count no longer exists.

When using the KO card counting system the table count is calculated in the following way:

Why is the need to covert to true count eliminated?

In balanced card counting systems the total value that has been assigned to the cards must sum to zero whilst this is not true for unbalanced counting systems. From all the unbalanced systems the Knockout card counting system is the most well know and easiest to learn. With this system the cards add up to a table count +4, which negates the need to convert to a true count.

Why use the KO Card Counting System

When players use the KO card counting system they no longer need to convert the running count to a true count because only one true count exists, making it that much easier for players to keep count while the game is in progress. Although it may be true that a certain amount of accuracy is lost when using the KO card counting system, the loss is miniscule when it is compared to the general accuracy of the High Low system. Apart from this when using the KO system the general error margin is reduced. The KO system is the perfect solution for players that make unnecessary errors or lack game speed due to calculation distractions.