Card Games Rules

A new card game starts in a small way, either as someone's invention, or as a modification of an existing game. Those playing it may agree to change the rules as they wish. The rules that they agree on become the house rules under which they play the game. A set of house rules may be accepted as valid by a group of players wherever they play, as it may also be accepted as governing all play within a particular house, café, or club.

When a game becomes sufficiently popular, so that people often play it with strangers, there is a need for a generally accepted set of rules. This need is often met when a particular set of house rules becomes generally recognized. For example, when Whist became popular in 18th-century England, players in the Portland Club agreed on a set of house rules for use on its premises. Players in some other clubs then agreed to follow the Portland Club rules, rather than go to the trouble of codifying and printing their own sets of rules. The Portland Club rules eventually became generally accepted throughout England and Western cultures.

It should be noted that there is nothing static or official about this process. For the majority of games, there is no one set of universal rules by which the game is played, and the most common ruleset is no more or less than that. Many widely played card games, such as Canasta and Pinochle, have no official regulating body. The most common ruleset is often determined by the most popular distribution of rulebooks for card games. Perhaps the original compilation of popular playing card games was collected by Edmund Hoyle, a self-made authority on many popular parlor games. The U.S. Playing Card Company now owns the eponymous Hoyle brand, and publishes a series of rulebooks for various families of card games that have largely standardized the games' rules in countries and languages where the rulebooks are widely distributed. However, players are free to, and often do, invent house rules to supplement or even largely replace the standard rules.

If there is a sense in which a card game can have an official set of rules, it is when that card game has an official governing body. For example, the rules of tournament bridge are governed by the World Bridge Federation, and by local bodies in various countries such as the American Contract Bridge League in the U.S., and the English Bridge Union in England. The rules of skat are governed by The International Skat Players Association and in Germany by the Deutscher Skatverband which publishes the Skatordnung. The rules of French tarot are governed by the Fédération Française de Tarot. The rules of Poker's variants are largely traditional, but enforced by the World Series of Poker and the World Poker Tour organizations which sponsor tournament play. Even in these cases, the rules must only be followed exactly at games sanctioned by these governing bodies; players in less formal settings are free to implement agreed-upon supplemental or substitute rules at will.

In organized sports, point shaving is a type of match fixing where the perpetrators try to prevent a team from covering a published point spread. Unlike other forms of match fixing, sports betting invariably motivates point shaving. A point shaving scheme generally involves a sports gambler and one or more players of the sports team favored to win the game. In exchange for a bribe, the player or players agree to ensure that their team will not cover the point spread. The gambler then wagers against that team.

Basketball

Basketball is a particularly easy medium for shaving points because of the scoring tempo of the game and the ease by which one player can influence key events. By deliberately missing shots or committing well-timed turnovers or fouls, a corrupt player can covertly ensure that his team fails to cover the point spread, without causing them to lose the game or to lose so badly that suspicions are aroused. Although the NCAA has adopted a zero tolerance policy with respect to gambling activity by its players, some critics believe it unwittingly encourages point shaving due to its strict rules regarding amateurism, combined with the large amount of money wagered on its games. The NCAA has produced posters warning of this, the most notable being an athlete sitting alone on a bench with his face buried in his hands although this may also look like the athlete suffered a tremendous defeat with the caption DO NOT BET ON IT with warnings as to what could happen if they are involved in such a plan as well as an athlete being caught gambling himself .

Famous examples of this are the CCNY Point Shaving Scandal of the 1950-51 and the Boston College basketball point shaving scandal of 1978-79, which was perpetrated by gangsters Henry Hill and Jimmy Burke.

Sports Point Shaving

The technique has been used by both amateur and professional athletes in many other sports. The intention is to manipulate scoring so that the final score results in a predetermined outcome. A typical sports game should always tend to behave in a nondeterministic manner. In other words, the exact final score of a game exists in a set, which can contain more than a thousand possible combinations. Furthermore, nondeterminism suggests that the final score of a sports game is practically unpredictable.

Many variables can influence the outcome. Such variables include weather, fatigue, and human error. However, amateur and professional athletes who are very skilled in the technique of point shaving can consistently create unlikely outcomes in bad weather and other challenging conditions. These unlikely outcomes tend to create huge financial gains/losses in prediction markets.

The deviation from the mean, otherwise known as the expected value, is what makes these outcomes so unlikely. In most sports, the expected value is a mathematical prediction that can be expressed as a scoring differential. This scoring differential is also calculated by casinos; and, gamblers generally refer to it as a point spread. In many cases of point shaving, the final outcome deviates substantially from the expected value, or the point spread. Additionally, the deviation from the expected value can be quite large. Many times, the deviation is so large that athletes on opposing teams must cooperate in order to achieve the desired result. In this particular case, the final outcome is commonly referred to as a thrown game.