Includes single, double, and multi-deck cards. Feature easy-to-use basic strategy and his new, cutting-edge ultimate strategy for use with either casino or online play from the author of the best selling Blackjack Attack. Each 3.5 by 5 tri-fold card contains four charts of the most scientifically advanced blackjack strategies available to the traditional player. Each chart allows you to use the basic, total-dependent, strategy or the ultimate, composition-dependent, strategy, which offers the most precision available from any strategy card on the market. Cards also explain how to use each chart, which rules are better for the player, how the house edge affects your bankroll, and more.