Chocolate is a raw or processed food produced from the seed of the tropical Theobroma cacao tree. Cacao has been cultivated for at least three millennia in Mexico, Central and South America, with its earliest documented use around 1100 BC. The majority of the Mesoamerican people made chocolate beverages, including the Aztecs. The seeds of the cacao tree have an intense bitter taste and fermented to develop the flavor. After fermentation, the beans are dried, then cleaned, and then roasted, and the shell removed to produce cacao nibs. The nibs ground to cocoa mass, pure chocolate in rough form. Because this cocoa mass usually liquefied then molded with or without other ingredients is chocolate liquor. The liquor processed into two components: cocoa solids and cocoa butter. Unsweetened baking chocolate contains primarily cocoa solids and cocoa butter in varying proportions. Much of the chocolate consumed today is in the form of sweet chocolate, combining cocoa solids, cocoa butter or other fat, and sugar. Milk chocolate is sweet chocolate that additionally contains milk powder or condensed milk. White chocolate contains cocoa butter, sugar, and milk but no cocoa solids. Cocoa solids contain alkaloids such as theobromine and phenethylamine, which have physiological effects on the body. It links to serotonin levels in the brain. Some research found that chocolate, eaten in moderation, could lower blood pressure. The presence of theobromine renders it toxic to some animals, especially dogs and cats. Chocolate has become one of the most popular food types and flavors in the world. Gifts of chocolate molded into different shapes have become traditional on certain holidays: chocolate bunnies and eggs are popular on Easter, chocolate coins on Hanukkah, Santa Claus and other holiday symbols on Christmas, and chocolate hearts or chocolate in heart-shaped boxes on Valentine's Day. Chocolate in cold and hot beverages produces chocolate milk and hot chocolate. Several types of chocolate distinguished. Pure, unsweetened chocolate contains primarily cocoa solids and cocoa butter in varying proportions. Much of the chocolate consumed today is in the form of sweet chocolate, combining chocolate with sugar. Milk chocolate is sweet chocolate that additionally contains milk powder or condensed milk. European rules specify a minimum of 25% total dry cocoa solids for Milk Chocolate.5 "White chocolate" contains cocoa butter, sugar, and milk but no cocoa solids. Chocolate contains alkaloids such as theobromine and phenethylamine, which have some physiological effects in humans, but the presence of theobromine renders it toxic to some animals, such as dogs and cats. It links to serotonin levels in the brain. Dark chocolate promoted for its health benefits. It possess substantial amount of antioxidants that reduce the formation of free radicals. White chocolate formed from a mixture of sugar, cocoa butter and milk solids. Although its texture is similar to milk and dark chocolate, it does not contain any cocoa solids. Because of this, many countries do not consider white chocolate as chocolate at all. Although first introduced by Hebert Candies in 1955, Mars, Incorporated was the first to produce white chocolate within the United States. Because it does not contain any cocoa solids, white chocolate does not contain any theobromine, meaning animals can consume it. Dark chocolate produced by adding fat and sugar to the cacao mixture. The U.S. Government calls this "sweet chocolate", and requires a 15% concentration of chocolate liquor. European rules specify a minimum of 35% cocoa solids.5 Dark chocolate, with its high cocoa content, is a rich source of epicatechin and Gallic acid, which thought to possess cardio protective properties. Dark chocolate reduces the possibility of a heart attack when consumed regularly in small amounts. Semisweet chocolate is a dark chocolate with low sugar content. Bittersweet chocolate is chocolate liquor to which some sugar, more cocoa butter, vanilla and sometimes lecithin added. It has less sugar and more liquor than semisweet chocolate, but the two are interchangeable in baking.

Betting arbitrage, miracle bets, sure bets, sports arbitraging is a particular case of arbitrage arising on betting markets due to bookmakers’ different opinions on either event outcomes or plain errors. By placing one bet per each outcome with different betting companies, the bettor can make a profit. In the bettors' slang an arbitrage is often referred to as an arb; people who use arbitrage are called arbers. A typical arb is around 2 percent, often less; however 4-5 percent are occasionally seen and during some special events they might reach 20 percent. Arbitrage betting involves relatively large sums of money stakes are bigger than in normal betting.

Bookmakers generally disapprove of arbers, and restrict or close the accounts of those who they suspect of engaging in arbitrage betting. Although arbitrage betting has existed since the beginnings of bookmaking, the rise of the Internet, odds-comparison websites and betting exchanges have enabled the practice to be easier to perform. On the other hand, these changes also made it easier for bookmakers to keep their odds in line with the market.

The best way of generating profit, which has been established in Britain via sports arbitrage, consists of 'key men' employing others to place bets on their behalf, so as to avoid detection and increase accessibility to bookmakers. This allows the financiers or key arbers to stay at a computer to keep track of market movement.

While often claimed to be risk-free, this is only true if an arb is successfully completed; in reality, there are several threats to this:

Arbs in online sports markets have a median lifetime of around 15 minutes, after which the difference in odds underpinning them vanishes through betting activity. Without rapid alerting and action, it is possible to fail to make all the legs of the arb before it vanish, thus transforming it from a risk-free arb into a bet. High street bookmakers however, offer their odds days in advance and rarely change them once they have been set. These Arbs can have a lifetime of several hours.

Making errors: In the excitement of the action and due to the high number of bets placed, it is not uncommon to make a mistake like traders on financial markets. For example the appropriate stakes may be incorrectly calculated, or be placed on the wrong legs of the arb, locking in a loss, or there may be inadequate funds in one of the accounts to complete the arb. Those errors might temporarily have an important impact. In the long term, the benefit will depend on the odds. For example one could actually make more money by placing the wrong bet where the outcome happens to be beneficial, though not justified by the arbitrage calculation. However, this stroke of luck being repeated is unlikely, assuming the bookies have calculated the odds so they make a profit.

Bet cancellation: If a bettor places bets so as to make an arbitrage and one bookmaker cancels a bet, the bettor could find himself in a bad position because he is actually betting with all the risks implied. The bettor can repeat the bet that has been cancelled so as minimize the risk, but if he cannot get the same odds he had before he may be forced to take a loss. In some cases the situation arises when there are very high potential payouts by the bookie, perhaps due to an unintentional error made while quoting odds. Many jurisdictions allow bookmakers to cancel bets in the event of such a palpable [obvious] error in the quoted odds This is often loosely defined as an obvious mistake, but whether a palp in fact has been made is often the sole discretion of the bookmaker.

Other problems: Bookmakers who suspect arbing can set very low maximum stake limits, making arbing insufficiently profitable. Capital diffusion is serious; many bookmakers make it very easy to deposit funds and difficult to withdraw them. Making a return involves many bets spread over typically many bookmakers so keeping track is a considerable challenge, and requires excellent record-keeping.

Duplicate Poker

Duplicate poker is a variant of the popular card game poker. Duplicate poker is based on the principles of Duplicate Bridge but also involves some of the rules used for playing pot limit and no limit Texas hold'em.

Duplicate poker is a skill-based game in which there are two or more tables consisting of the same number of players. Each table is dealt with an identically shuffled deck of cards. Every player holds the same hand as the person seated in identical seats at other tables.

All players begin each hand with the ability to bet the same number of playing chips, regardless of prior performance in the previous rounds.

The object of Duplicate poker is to win more chips than your opponents sitting in corresponding seats at other tables. Ultimately, the winner is decided based on the total number of chips accumulated up until the end of the game, as compared with those held by all players in the same seats at the other tables. Conceivably, even a player who loses chips overall can win at the game if that player loses fewer chips than his opponents.

Duplicatepoker.com, the first poker room to use the format, closed down on October 5th 2008, citing the global financial crisis as the reason for the removal of services. It had previously been popular due to the fact that as a skill-based game it was legal in the U.S. While the game is more conducive to an automated online format because of pre-set decks and the need to record accurate scoring, Duplicate poker has also been played in a live format. The first-ever Duplicate poker tournament was held in April 2007 at the Cherokee Casino in Tulsa, Oklahoma.

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.