In this sense, the plan they need to follow and understand, should they decide to use this strategy, is the following: the cards from two through six get plus one value, seven, eight and nine get zero and the rest of the cards – minus one. They can be negative, positive or zero and this method is especially designed to ease players’ counting on the table and make it more pleasant. It uses the famous principle of the card counting which is assigning different point values of the cards in the desk. The Hi-Lo is a level one system in terms of difficulty which places it among the strategies which are not only reliable but also simplified. Established in 1963 by the mathematician Harvey Dubner, the system grew in popularity very fast and since then it has been a centre of attention in the gambling sphere. Throughout the years, it has proven to be extremely effective and accurate which is the reason why it is the first-choice to many gamblers. The Hi-Lo system is one of the most popular strategies used all over the world and it has provoked many heated discussions among professional players.

High low method blackjack