The K-O system is a great blackjack card counting strategy for all kinds of players, regardless of their experience and mathematical skills. The Knock-Out card-counting system eliminates the mountain of mental arithmetic necessary to win at blackjack. The scientifically devised unbalanced K-O. . The KO Strategy is one of the very easiest Blackjack card counting strategies A full description can be found in Blackjack Attack by Don Schlesinger. Learn how to use the knockout system to gain an edge in blackjack. Learning the Knock Out system is a must for all blackjack players who are KO method could help serious players generate good profits in real blackjack games. Knockout (KO) is a card counting system used in blackjack. That's it. There is 1 deviation you. I use the KO full strategy which implements changes to your plays based on the count at several different levels and number of decks (unlike. [HOST] › community › threads › ko-full-strategy-and-tko-. The KO Count is straightforward “unbalanced” card counting system, ideal if you are looking to progress from basic counting strategies. The KO or Knockout system is one of the easiest strategies for counting cards in blackjack as it only requires players to keep a running count. If you are playing KO-Preferred, the two running counts where you implement deviations for 8D are -6 and +4.