He tested the suggested optimal plays of the engineers on an IBM computer to find out they were mostly accurate.
The engineers published their findings in a statistics journal and attracted the interest of mathematician Edward O. And an apocalypse they did bring, or at least if you look at things from the casinos’ perspective, because they laid the foundations for blackjack to become a beatable game. It was originally devised by four US Army engineers, collectively known as the Four Horsemen of the Apocalypse. The history of basic strategy dates as far back as the early 1950s.