David Sklansky

The fundamental theorem of poker is a principle first articulated by David Sklansky[1] that he believes expresses the essential nature of poker as a game of decision-making in the face of incomplete information.

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Every time you play a hand differently from the way you would have played it if you could see all your opponents' cards, they gain; and every time you play your hand the same way you would have played it if you could see all their cards, they lose. Conversely, every time opponents play their hands differently from the way they would have if they could see all your cards, you gain; and every time they play their hands the same way they would have played if they could see all your cards, you lose.

The fundamental theorem is stated in common language, but its formulation is based on mathematical reasoning. Each decision that is made in poker can be analyzed in terms of the expected value of the payoff of a decision. The correct decision to make in a given situation is the decision that has the largest expected value. If a player could see all of their opponents' cards, they would always be able to calculate the correct decision with mathematical certainty, and the less they deviate from these correct decisions, the better their expected long-term results. This is certainly true heads-up, but Morton's theorem, in which an opponent's correct decision can benefit a player, may apply in multi-way pots.

David Sklansky, a criminal law professor at UC Berkeley, says it could constitute the reasonable suspicion needed to pull someone over or stop him on the street. And police don’t need any reasonable suspicion at all to knock on someone’s door and ask what she’s up to, provided the person agrees to talk. David Alan Sklansky teaches and writes about criminal law, criminal procedure, and evidence. His scholarship has addressed the law, sociology, and political science of policing; the proper exercise and constraint of prosecutorial power; the interpretation and application of the Fourth Amendment; fairness and accuracy in criminal adjudica tion; the relationship between criminal justice.

An example[edit]

David sklansky books

Suppose Bob is playing limit Texas hold 'em and is dealt 9♣ 9♠under the gun before the flop. He calls, and everyone else folds to Carol in the big blind who checks. The flop comes A♣ K♦ 10♦, and Carol bets.

Bob now has a decision to make based upon incomplete information. In this particular circumstance, the correct decision is almost certainly to fold. There are too many turn and river cards that could kill his hand. Even if Carol does not have an A or a K, there are 3 cards to a straight and 2 cards to a flush on the flop, and she could easily be on a straight or flush draw. Bob is essentially drawing to 2 outs (another 9), and even if he catches one of these outs, his set may not hold up.

However, suppose Bob knew (with 100% certainty) that Carol held 8♦ 7♦. In this case, it would be correct to raise. Even though Carol would still be getting the correct pot odds to call, the best decision for Bob is to raise. Therefore, by folding (or even calling), Bob has played his hand differently from the way he would have played it if he could see his opponent's cards, and so by the fundamental theorem of poker, his opponent has gained. Bob has made a 'mistake', in the sense that he has played differently from the way he would have played if he knew Carol held 8♦ 7♦, even though this 'mistake' is almost certainly the best decision given the incomplete information available to him.

This example also illustrates that one of the most important goals in poker is to induce the opponents to make mistakes. In this particular hand, Carol has practiced deception by employing a semi-bluff — she has bet a hand, hoping Bob will fold, but she still has outs even if he calls or raises. Carol has induced Bob to make a mistake. Buy coin master spins.

Multi-way pots and implicit collusion[edit]

The Fundamental Theorem of Poker applies to all heads-up decisions, but it does not apply to all multi-way decisions. This is because each opponent of a player can make an incorrect decision, but the 'collective decision' of all the opponents works against the player.

This type of situation occurs mostly in games with multi-way pots, when a player has a strong hand, but several opponents are chasing with draws or other weaker hands. Also, a good example is a player with a deep stack making a play that favors a short-stacked opponent because he can extract more expected value from the other deep-stacked opponents. Such a situation is sometimes referred to as implicit collusion.

The fundamental theorem of poker is simply expressed and appears axiomatic, yet its proper application to the countless varieties of circumstances that a poker player may face requires a great deal of knowledge, skill, and experience.

References[edit]

  1. ^Sklansky, David. The theory of poker (Fourth ed.). Las Vegas, Nevada. ISBN1-880685-00-0. OCLC43742996.

Sklansky Dollars (Sklansky Bucks) Explained

See also[edit]

David Sklansky Blackjack

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(Redirected from David Slansky)
David Sklansky
Nickname(s)The Mathematician
ResidenceReno, Nevada, U.S.
BornDecember 22, 1947 (age 73)
Teaneck, New Jersey, U.S.
World Series of Poker
Bracelet(s)3
Money finish(es)23
Highest ITM
Main Event finish
27th, 1988
World Poker Tour
Title(s)None
Final table(s)1
Money finish(es)3

David Sklansky Stanford

Sklansky's table on poker hands

David Sklansky (born December 22, 1947)[1] is an American professional poker player and author. An early writer on poker strategy, he was known for his mathematical approach to the game. His key work The Theory of Poker laid down fundamental principles on which much later analysis was based.

Early years[edit]

David Sklansky Pdf

Sklansky was born and raised in Teaneck, New Jersey, where he graduated from Teaneck High School in 1966.[2] He attended the University of Pennsylvania, but dropped out before graduation. He returned to Teaneck and passed multiple Society of Actuaries exams by the age of 20, and worked for an actuarial firm.[3]

Poker career[edit]

Sklansky is a top authority[4] on gambling. He has written and contributed to fourteen books on poker, blackjack, and general gambling.

Sklansky has won three World Series of Pokerbracelets, two in 1982 ($800 Mixed Doubles with Dani Kelly, and $1,000 Draw Hi) and one in 1983 ($1,000 Limit Omaha Hi). He also won the Poker By The Book invitational event on the 2004 World Poker Tour, outlasting a table full of poker legends, which included Phil Hellmuth Jr, Mike Caro, T. J. Cloutier, and Mike Sexton, and then finally overcoming Doyle Brunson.[5]

Sklansky attended the Wharton School of Business at the University of Pennsylvania for a year before leaving to become a professional gambler.[6] He briefly took on a job as an actuary before embarking into poker. While on the job, he discovered a faster way to do some of the calculations and took that discovery to his boss. The boss told him he could go ahead and do it that way if he wanted but wouldn't pass on the information to the other workers. 'In other words, I knew something no one else knew, but I got no recognition for it,' Sklansky is quoted as saying in Al Alvarez's 1983 work The Biggest Game in Town. 'In poker, if you're better than anyone else, you make immediate money. If there's something I know about the game that the other person doesn't, and if he's not willing to learn or can't understand, then I take his money.'

As of 2015, his live tournament winnings exceed $1,350,000.[7] He lives in Las Vegas, Nevada.

World Series of Poker bracelets[edit]

YearTournamentPrize (US$)
1982$1,000 Draw High$15,500
1982$800 Mixed Doubles (with Dani Kelly)$8,800
1983$1,000 Limit Omaha$25,500

Publications[edit]

Sklansky has authored or co-authored 14 books on gambling theory and poker. Most of his books are published by Two Plus Two Publishing. His book cover art often features hand guns. His 1976 book Hold'em Poker was the first book widely available on the subject of poker.[8] It's through these books that he popularized the concept of Sklansky Bucks (now often referred to as luck-adjusted winnings), which are used by professional poker players to this day.[9]

  • Hold'em Poker. 1976. ISBN978-0911996678.
  • Brunson, Doyle; et al. (1979). 'Seven-card stud high-low split'. Super/System.
  • Sklansky on Razz. 1983. ISBN0-87019-050-4.
  • Sklansky on Poker: Including a Special Section on Tournament Play, and Sklansky on Razz. 1994. ISBN1-880685-06-X.
  • Sklansky, David; Malmuth, Mason (1997). How to Make $100,000 a Year Gambling for a Living. ISBN1-880685-16-7.
  • Getting the Best of It. 1997. ISBN1-880685-04-3.
  • Poker, Gaming, & Life. 1997. ISBN1-880685-17-5. Collection of articles that have appeared in Card Player and similar specialist magazines during the 1990s
  • Sklansky, David; Malmuth, Mason (1999). Hold'em Poker for Advanced Players, 21st Century Edition. ISBN1-880685-22-1.
  • Sklansky, David; Malmuth, Mason; Zee, Ray (1999). Seven Card Stud for Advanced Players. ISBN1-880685-23-X.
  • Sklansky Talks Blackjack. 1999. ISBN1-880685-21-3.
  • Theory of Poker: A Professional Poker Player Teaches You How To Think Like One. 1999. ISBN1-880685-00-0.
  • Tournament Poker for Advanced Players. 2002. ISBN1-880685-28-0.
  • Miller, Ed; Sklansky, David; Malmuth, Mason (2004). Small Stakes Hold 'em: Winning Big with Expert Play. ISBN1-880685-32-9.
  • Sklansky, David; Miller, Ed (2006). No Limit Hold 'em: Theory and Practice. ISBN1-880685-37-X.
  • DUCY? Exploits, Advice, and Ideas of the Renowned Strategist. 2010. ISBN978-1880685488.

References[edit]

  1. ^[1] pokerolymp.de Interview, german
  2. ^Staff. 'David Sklansky', Current Biography Yearbook 2007, Volume 68. H. W. Wilson Co., 2007. Accessed August 31, 2011. 'Sklansky attended Teaneck High School, graduating in 1966.'
  3. ^Schwarz, Marc. 'He wrote the book on Hold 'em; Teaneck native a poker authority.', The Record (Bergen County), July 12, 2005.
  4. ^'David Sklansky, CardsChat Interview, Still Old School and Not Afraid to Own It'. CardsChat.com. Retrieved January 31, 2020.
  5. ^WPT Poker by the Book synopsis Retrieved September 11, 2006.
  6. ^Michael Konik Bets for LifeArchived April 15, 2009, at the Wayback MachineCigar Aficionado, May/June 1998. Retrieved September 11, 2006.
  7. ^'David Sklansky's profile on The Hendon Mob'. The Hendon Mob Poker Database. Retrieved March 30, 2018.
  8. ^Colby, Ann (May 14, 2001). 'Pythagoras, Pi and Poker'. Los Angeles Times. Chris Ferguson is the new breed of player who uses math calculations, game theory and Internet resources to gain an edge over old-style, instinctive gamblers.. 'Hold 'Em Poker, written by Sklansky in 1976, was the first book on a type of poker that today dominates play in California card rooms..'
  9. ^'David Sklansky's profile on Upswing Poker'. Upswing Poker. May 13, 2019. Retrieved April 10, 2020.

External links[edit]

  • Two Plus Two, publisher
  • David Sklansky at World Poker Tour
  • David Sklansky at Poker Listings
  • 'David Sklansky'. Interview. Le Poker TV. Archived from the original on May 20, 2010.

David Sklansky Professor

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