Thorp used the
IBM 704 as a research tool in order to investigate the probabilities of winning while developing his
blackjack game theory, which was based on the
Kelly criterion, which he learned about from the 1956 paper by Kelly. He learned
Fortran in order to program the equations needed for his theoretical research model on the probabilities of winning at blackjack. Thorp analyzed the game of blackjack to a great extent this way, while devising
card counting schemes with the aid of the IBM 704 in order to improve his odds, especially near the end of a
card deck that is not being reshuffled after every deal.
Applied research in casinos Thorp decided to test his theory in practice in
Reno,
Lake Tahoe, and
Las Vegas,
Nevada. Thorp started his applied research using $10,000, with
Manny Kimmel, a wealthy professional gambler and former bookmaker, providing the venture capital. First they visited Reno and Lake Tahoe establishments where they tested Thorp's theory at the local blackjack tables. which sold over 700,000 copies, a huge number for a specialty title which earned it a place in the
New York Times bestseller list, much to the chagrin of Kimmel whose identity was thinly disguised in the book as Mr. X. is one of the very few examples where results from such research reached the public directly, completely bypassing the usual academic
peer review process cycle. He has also stated that he considered the whole experiment an academic exercise. His team's roulette play was the first instance of using a wearable computer in a casino — something which is now illegal, as of May 30, 1985, when the Nevada devices law came into effect as an emergency measure targeting blackjack and roulette devices. He also devised the "Thorp count", a method for calculating the likelihood of winning in certain endgame positions in
backgammon. ''Edward O. Thorp's Real Blackjack'' was published by Villa Crespo Software in 1990. ==Stock market==