KO Count Card Counting System
The Knockout (KO) Card Counting System was first introduced in The Book of British Blackjack, written by Mohsen Zadehkoochak in 1993. He called his card counting strategy the “All Sevens” count, because the difference between the High Low card counting system and the KO card counting system is that sevens are not considered neutral cards (with a value of +0), but have a positive value of +1. The big advantage of KO count is that you do not need to convert your Running Count into the True Count – there is only one True Count!
The Running Count in KO Count
In the KO card counting system you calculate the table count as follows:
Why is there no need to convert to the True Count?
In balanced card counting systems, such as the High Low card counting system, counting all the cards in one or multiple decks amounts to a count of zero. In an unbalanced system, however, counting all the cards will lead to a non-zero value. Out of all unbalanced systems the knockout card counting system is the most famous and the most easy to learn. In this system counting all cards in a single deck does not add up to zero, instead it adds up to to a table count of +4. This effect approximates the effect of converting your Running Count into a True Count and this calculation can therefore be safely dispensed with in the KO Count.
Why use the KO system?
The big advantage of using the Knockout card counting system is that players don’t have to convert the Running Count to the True Count. There is only one (true) count and that makes it easier to count while playing and keep your speed up. You do sacrifice some accuracy by using the KO system, but the loss is minimal compared to the overall accuracy of the High Low card counting system, also bearing in mind that your chances of making card counting errors are greatly reduced. So if you find your game suffering from errors made while converting running counts to true counts when using other card counting systems, or if you find you are playing slower than you should because you are distracted by your calculations, you will benefit greatly from the simplicity of the KO system. For players new to card counting the KO Count may easily prove an excellent system of choice.