Thorp set GClub a task to formulate the rules which would allow him to calculate probabilities of taking out one or another card out of an incomplete pack. Knowing these probabilities a gambler could already with reasonable assurance draw cards from the widow without being too much afraid of "a pip out", and besides, on the basis of the knowledge of some aspects of a croupier's strategy to make suppositions about those cards which he had, and other gamblers as well.
Naturally, as a gambler was to make a decision with regard to a widow very quickly, the sought rules for calculation of probabilities were to be rather simple for a gambler to be able to use them "in mind" with the help of neither a calculator, nor a pen and paper (even if we suppose that a gambler will be given a chance to do calculation on paper, it will certainly arise suspicion).
Edward Thorp managed to solve this mathematical problem having created rather simple algorithms for calculation of probabilities of taking out of one or another card from a pack, and using them to build a strategy of the game of twenty-one which would not be very complicated, allowing a gambler to considerably increase his chances of winning!
As the Hungarian mathematician A.Reni states after a few days of presenting his report on the obtained results at the meeting of the American Maths Society in 1960 in Washington "Thorp received from a businessman a letter with a check for 1 thousand dollars intended for checking of a winning strategy in practice.
Thorp accepted the check and having learnt the formulated by him rules left for Nevada to try his discovery. The trial went well: less than after two hours Thorp won 17 thousand dollars.
Needless to say, the owner of royal1688 casino a gambling house didn't share Thorp and his companion's delight with regard to a successful comeout of the trial and the next day did his best to prevent Thorp from joining in the game. Later on Thorp tried to penetrate into other gambling houses, but the news of him had already spread far and wide, so that the doors of all the gambling houses appeared to be closed for him.
Several times having adjusted a fake beard or having got a make up of a Chinese, Thorp managed to get to the gaming-table, but in any disguise his constant gain invariably gave him away. Thorp had to refuse from further checking of the strategy developed by him". Though "additional checks" were "necessary" only to enrich the pockets of the talented mathematician. One could hardly doubt that E.Thorp managed to create a real winning strategy!
However, since he could no longer benefit from his discovery himself, he decided to render "welfare assistance" to his colleagues having published in 1961 a small article in an American academic journal (Thorp E.O. "A favourable strategy for twenty-one", Proc.Nat.Acad.Sci., 47, 110-112, (1961)).
And despite the small size of the article and, consequently, an extremely condensed form of persentment, made it comprehensible for rather a narrow group of professionals, one can be sure that a number of American scientists and their friends certainly "improved" their material situation (owners of gambling houses were unlikely to read scientific magazines at that time).
