Donald "Don" Schlesinger is a gaming mathematician, author, lecturer, player, and member of the Blackjack Hall of Fame who specializes in the casino game of blackjack. His work in the field has spanned almost four decades. He is the author of the book Blackjack Attack - Playing the Pros' Way, currently in its third edition, which is considered one of the most sophisticated theoretical and practical studies of the game to date.
Schlesinger was born in New York City and graduated from the City College of New York (CCNY) with a B.S. degree in mathematics. In addition, he holds M.A. and M.Phil. degrees in French from the City University of New York. Don began his professional life teaching mathematics and French in the New York City school system. In 1984, he changed professions and, until 1998, was a principal (executive director) at a Wall Street investment bank. Since his retirement from the finance industry, he has devoted even more time to blackjack, in a researching, writing, teaching, and playing capacity.
His contributions to the game include research into optimal betting, risk analysis, optimal back counting, Floating Advantage, camouflage and team play, and card counting systems comparison.
He is most well known for:
- Creating the Illustrious 18, an abridged set of the most efficient card counting indices mentioned in most card counting books published in the last 30 years.
- Creating DI (Desirability Index) and SCORE (Standard Comparison of Risk and Expectation), to optimally compare games under various scenarios.
- Publication of the optimal Blackjack composition-dependent basic strategy.
Schlesinger has edited, consulted and/or collaborated with many of the leading Blackjack analysts, programmers, and authors, including Stanford Wong, Edward O. Thorp, Peter Griffin, Arnold Snyder, Karel Janecek, John Auston, Katarina Walker, and Norm Wattenberger. In addition, he has contributed to many different issues of the aficionado magazine Blackjack Forum. .
Books that mention Schlesinger include:
- Repeat Until Rich by Josh Axelrad
- Blackjack: A Professional Reference, the Encyclopedia of Casino Twenty-One by Michael Dalton
- The Theory of Gambling and Statistical Logic by Dr. Richard Arnold Epstein
- The Doctrine of Chances: Probabilistic Aspects of Gambling By Dr. Stewart N. Ethier
- Finding the edge: mathematical analysis of casino games By Dr. Olaf Vancura, Dr. Judy A. Cornelius, Dr. William R. Eadington
- Burning the Tables in Las Vegas by Ian Andersen
- Professional Blackjack by Dr. Stanford Wong
- Risk and Reward: The Science of Casino Blackjack by Dr. N. Richard Werthamer
- Knock-Out Blackjack by Dr. Olaf Vancura, Ken Fuchs
- Basic Blackjack by Dr. Stanford Wong
- The Blackjack Zone by Dr. Eliot Jacobsen
- Legends of Blackjack by Kevin Blackwood and Larry Barker
- Play Blackjack Like the Pros by Kevin Blackwood
- Blackjack autumn: a true tale of life, death, and splitting tens by Barry Meadow
- Blackjack: Play Like the Pros by John Bukofsky
- Frugal Video Poker by Jean Scott
- Dynamic Blackjack by Dr. Richard Reid
- Blackjack Blueprint by Rick Blaine
- Blackbelt in Blackjack by Arnold Snyder
- Blackjack Diary by Stuart Perry
- Beyond Counting by Dr. James Grosjean
- Hollywood Blackjack by Dave Stann
- The Pro's Guide to Spanish 21 and Australian Pontoon by Katarina Walker
- Modern Blackjack by Norm Wattenberger
- Bootlegger's 200 proof blackjack by Mike Turner
- You've Got Heat by Barfarkel
- Mensa Guide to Casino Gambling: Winning Ways by Andrew Brisman
- Silver Fox Blackjack System by Ralph Stricker
- Get the Edge at Blackjack by John May
Books that briefly acknowledge Schlesinger:
- Gambling 102: The Best Stratgies for All Casino Games by Michael Shackleford
- Gambling Theory and Other Topics by Mason Malmuth
- Blackjack for Blood by Bryce Carlson
- Extra Stuff by Dr. Peter Griffin
- Blackjack Essays by Mason Malmuth
- Gambling for Winners: Your Hard-Headed, No B.S. Guide to Gaming by Richard Stooker
- Fundamentals of "21" by Mason Malmuth, Lynne Loomis
- ^Knappster: Is what's good for Macau good for Vegas?
- ^Blackwood, Kevin "Play Blackjack Like the Pros", 2005, Harper Collins, pages 107, 122, 147, 227
- ^"Encyclopedia of Casino Twenty-One". Spur of the Moment Publishing. Retrieved 2011-10-23.
- ^Blackwood, Kevin "Play Blackjack Like the Pros", 2005, Harper Collins, pages 18, 68-70, 85
- ^Epstein, Richard A. "The Theory of Gambling and Statistical Logic" 2nd edition, 2009, Academic Press, page 273
- ^Epstein, Richard A. "The Theory of Gambling and Statistical Logic" 2nd edition, 2009, Academic Press, page 267-268
(From Casino Player, November 1997)
© Arnold Snyder 1997
[Written from the depths of a once-in-a-lifetime losing streak...]
I am now in the process of editing a new book which, by the time you read this article in Casino Player, will already be published. Blackjack Wisdom is a compilation of some seventy-five magazine articles I have written over the past fifteen years or so, many of which initially appeared in Casino Player.
As I wrap up this project, I must confess that an entire chapter has been excised from this book—and the single longest chapter at that. �Bucks in Flux� was, for many months, the working title of Chapter One. This chapter was composed of more than a dozen articles I had written over the years for various periodicals, all with a common theme—negative fluctuations.
Among these articles were such gems as:
�Is It all Just Luck?� from Card Player,
�Speaking of Streaking,� from Casino Player,
�Those *!%]#* Fluctuations,� from Poker World,
�Good Guys Lose and Bad Guys Win,� from Blackjack Forum,
and many other fine essays which, I must admit, bore some of my favorite titles. Perhaps I will include this chapter, or portions of it, in Blackjack Wisdom II. Perhaps I will simply let these writings die, uncollected in any anthology. But I have trashed the entire chapter at this late hour, with a decision instead to end the book with this article you are reading right now. So, you—my Casino Player faithful—do not have to buy the book, since you already know how it ends!
Essentially, each and every one of the �Bucks in Flux� articles delivers the same depressing message, a message I have espoused in every one of my books, a message which can be edited down to three words:
You won�t win.
Do I really need fifteen articles to say those three words? I don�t think so. Though it occurs to me that all blackjack books should have at least one chapter titled: �You Won�t Win.�
The message delivered by most blackjack books and systems has always been the same baloney. Stanley Roberts� Winning Blackjack was once advertised with the slogan: �Make every casino in the world your personal bank account!� Ken Uston�s Million Dollar Blackjack was promoted with: �Make $500 per day any time you want!� And these aren�t phony systems; these books contain legitimate card counting strategies.
You can�t always tell the real systems from the phonies by looking at the advertising. Promotion is promotion. Authors of blackjack books, like authors of all �self-help� books—from weight-loss systems to multi-level marketing programs—are reluctant to deliver the message:
You won�t win.
Nobody wants to hear it.
When I self-published my first book, The Blackjack Formula, in 1980, and advertised it in Gambling Times magazine with the catchy, upbeat slogan: �Card Counters Beware,� stating in the ad that most of the blackjack games available in the casinos of the world were unbeatable with any card counting system, the publisher of Gambling Times, Stan Sludikoff, told me bluntly that I would never make any great amount of money trying to sell books with that type of pessimistic advertising.
Stan was write. Seventeen years later, I�m still just scraping by, still delivering that vastly unpopular message:
You won�t win.
Of course, there are a few players who do win. Professional card counters exist; they�re not entirely mythical. It�s just that I know that these professional players are so exceptional, so obsessed, so dedicated, such gluttons for punishment, so terror stricken by the concept of working a nine-to-five job, so few and far between in every sense of few and far between, that, honestly, you are highly unlikely to be one of these human anomalies. And the most honest thing I can say to you, if you tell me that you really want to become a professional blackjack player, is:
You won�t win.
And the reason is: fluctuations.
If you are anything like the masses of humanity, if you like to be rewarded for your efforts within some reasonable time frame, you won�t be able to take the fluctuations. Those negative downswings will be bigger, and harder, and longer lasting, and more upsetting, and more unbelievable, than your level of toleration.
Your losses will tear at your heart, and fill you with emptiness, and leave you in a state of quiet desperation. I hear this from players over and over again. I hear this from players who claim to have studied diligently, and practiced for hours on end, for weeks and months with a singular dream—to beat the casinos.
And they don�t win.
And they ask me why.
And I say, �Oh, it�s just normal standard deviation. A negative fluctuation. It could happen to anyone.�
But it happened to you.
Your months of dreaming.
And you didn�t win.
So, over and over again, in my books, and my columns, and my magazine articles, I feel compelled to deliver the message I have been delivering since my very first book in 1980:
You won�t win.
Some card counters will win, but not you. Some card counters will actually experience inordinate positive fluctuations! Wow!
But not you.
You won�t win.
Other card counters will be having champagne parties in their hotel rooms, celebrating that marvelous life of freedom and money and adventure that just seems to come naturally with the lifestyle of a professional gambler. But not for you. You will be among the unfortunate few who, statistically speaking, will be located in the far left tail of the Gaussian curve. Someone has to be there. It will be you.
I have been in that tail; it is a cold and lonely place. I suspect many of those who write about this game have been there, and they know what a cold and lonely place it is. Every professional card counter I know has been there. And if they have played blackjack professionally for many years, they have been there many times. These players have hearts stronger than mine, and I suspect, stronger than yours.
This much I know: it is easier to make a living writing about this game than it is playing it.
In any case, instead of filling an entire chapter of this book with some fifteen articles, written over a period of seventeen years, every one of which simply says, you won�t win, I�ve tossed the whole chapter out in favor of leaving you with just those three words of blackjack wisdom:
You won�t win. ♠
A lot of prominent professional blackjack players have told Arnold that this is their favorite piece of writing on the game. This essay is from Arnold Snyder's book, Blackjack Wisdom.
To read more about the experiences and methods of professional gamblers, see Arnold Snyder's Blackjack Forum Professional Gambling Library
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