Deamon Slayer Tokitou Muichirou Cosplay Costume | Color: Black/White | Size: 3xl. The scientifically devised unbalanced K-O. (author, mathematician, blackjack guru) This book is an enticing and simplified methodology that squeezes every last drop from the KO. The scientifically devised unbalanced K-O count can be used profitably anywhere blackjack is played: Las Vegas, Atlantic City, Mississippi, riverboat casinos. The Knock-Out card-counting system eliminates the mountain of mental arithmetic necessary to win at blackjack. Questions? Leave A Comment Below!. Knock-Out Blackjack: The Easiest Card-Counting System Ever Devised by Vancura, Olaf; Fuchs, Ken Pages can have notes/highlighting. Review by George C. La metodología de la KO sistema de contar cartas es explicado en el libro Knock-Out Blackjack (“Noquear Blackjack”), escrita por Olaf Vancura y Ken Fuchs.