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ECF Grading System
The ECF grading system is the rating system formerly used by the English Chess Federation. A rating produced by the system is known as an ECF grade. The English Chess Federation did not switch to the international standard ELO rating system until 2020. History ECF was first published in 1958, devised by Richard W. B. Clarke, father of politician Charles Clarke. Grades were updated on a six monthly cycle between 2012 and 2020, based on results towards the end of June and December; before 2012 grades were published annually. In July 2020 the English Chess Federation moved to publishing ratings monthly using a modified Elo system. Calculation of rating Every competitive game played under the ECF system gives a "performance grade" that is "score" or "points" for each player (later used as the basis for an averaged cyclical or yearly grade, their "personal grade" they take into all matches in that cycle or year): \text = \text \begin +50 & \text \\ \pm0 & \text \\ -50 & \text \end \ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sports Rating System
A sports rating system is a system that analyzes the results of sports competitions to provide ratings for each team or player. Common systems include polls of expert voters, crowdsourcing non-expert voters, betting markets, and computer systems. Ratings, or power ratings, are numerical representations of competitive strength, often directly comparable so that the game outcome between any two teams can be predicted. Rankings, or power rankings, can be directly provided (e.g., by asking people to rank teams), or can be derived by sorting each team's ratings and assigning an ordinal rank to each team, so that the highest rated team earns the #1 rank. Rating systems provide an alternative to traditional sports standings which are based on win–loss–tie ratios. In the United States, the biggest use of sports ratings systems is to rate NCAA college football teams in Division I FBS, choosing teams to play in the College Football Playoff. Sports ratings systems are also used to help d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
English Chess Federation
The English Chess Federation (ECF) is the governing chess organisation in England. It is affiliated to FIDE. The ECF was formed in 2004 as one of the more localised successors to the British Chess Federation (BCF), an organisation founded in 1904. History From 1904 until 2005, the British Chess Federation (BCF) was the governing body of chess in England. The BCF itself replaced the British Chess Association (BCA) and initially governed chess, its pre-eminent ratings, and rules in England, Wales and Northern Ireland. Over time, Scotland, Wales, Ireland and the Channel Islands were governed by their own chess federations. Only England came under BCF jurisdiction, and it also administered the British Chess Championship. In 2004, English chess administrators agreed that it would be factual to replace the BCF with the ECF, a change effective from the start of the 2005/6 season. From the 1990s there has been a movement to incorporate the federation into a company limited by guarantee ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Richard W
Richard is a male given name. It originates, via Old French, from Old Frankish and is a compound of the words descending from Proto-Germanic ''*rīk-'' 'ruler, leader, king' and ''*hardu-'' 'strong, brave, hardy', and it therefore means 'strong in rule'. Nicknames include "Richie", "Dick", "Dickon", " Dickie", "Rich", "Rick", "Rico", "Ricky", and more. Richard is a common English, German and French male name. It's also used in many more languages, particularly Germanic, such as Norwegian, Danish, Swedish, Icelandic, and Dutch, as well as other languages including Irish, Scottish, Welsh and Finnish. Richard is cognate with variants of the name in other European languages, such as the Swedish "Rickard", the Catalan "Ricard" and the Italian "Riccardo", among others (see comprehensive variant list below). People named Richard Multiple people with the same name * Richard Andersen (other) * Richard Anderson (other) * Richard Cartwright (other) * Ri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Charles Clarke
Charles Rodway Clarke (born 21 September 1950) is a British Labour Party politician, who was the Member of Parliament (MP) for Norwich South from 1997 until 2010, and served as Home Secretary from December 2004 until May 2006. Early life The son of Civil Service Permanent Secretary Sir Richard Clarke, Charles Clarke was born in London. He attended the fee-paying Highgate School where he was Head Boy. He then read Mathematics and Economics at King's College, Cambridge, where he also served as the President of the Cambridge Students' Union. A member of the Broad Left faction, he was President of the National Union of Students from 1975 to 1977. Clarke had joined the Labour Party by then and was active in the Clause Four group. Clarke was the British representative on the Permanent Commission for the World Youth Festival (Cuba) from 1977 to 1978. Local government He was elected as a local councillor in the London Borough of Hackney, being Chair of its Housing Committee and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zero-sum
Zero-sum game is a mathematical representation in game theory and economic theory of a situation which involves two sides, where the result is an advantage for one side and an equivalent loss for the other. In other words, player one's gain is equivalent to player two's loss, therefore the net improvement in benefit of the game is zero. If the total gains of the participants are added up, and the total losses are subtracted, they will sum to zero. Thus, cutting a cake, where taking a more significant piece reduces the amount of cake available for others as much as it increases the amount available for that taker, is a zero-sum game if all participants value each unit of cake equally. Other examples of zero-sum games in daily life include games like poker, chess, and bridge where one person gains and another person loses, which results in a zero-net benefit for every player. In the markets and financial instruments, futures contracts and options are zero-sum games as well. In c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pirc Defence
The Pirc Defence (pronounced ) is a chess opening characterised by the response of Black to 1.e4 with 1...d6 and 2...Nf6, followed by ...g6 and ...Bg7, while allowing White to establish a with pawns on d4 and e4. It is named after the Slovenian grandmaster Vasja Pirc. The Pirc Defence is usually defined by the opening sequence :1. e4 d6 :2. d4 Nf6 :3. Nc3 g6 This is the most commonly played line after Black responds to 1.e4 with 1...d6. It has been claimed to give rise to somewhat interesting and exciting games, where Black will have but has to be cautious about playing too passively. According to Garry Kasparov, the Pirc Defence is "hardly worth using in the tournaments of the highest category", as it gives White "too many opportunities for anybody's liking". Description The Pirc Defence is a relatively new opening; while it was seen on occasion in the late nineteenth century, it was considered irregular, thus remaining a sideline. The opening began gaining some p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elo Rating System
The Elo rating system is a method for calculating the relative skill levels of players in zero-sum games such as chess. It is named after its creator Arpad Elo, a Hungarian-American physics professor. The Elo system was invented as an improved chess-rating system over the previously used Harkness system, but is also used as a rating system in association football, American football, baseball, basketball, pool, table tennis, and various board games and esports. The difference in the ratings between two players serves as a predictor of the outcome of a match. Two players with equal ratings who play against each other are expected to score an equal number of wins. A player whose rating is 100 points greater than their opponent's is expected to score 64%; if the difference is 200 points, then the expected score for the stronger player is 76%. A player's Elo rating is represented by a number which may change depending on the outcome of rated games played. After every game, the winni ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
FIDE
The International Chess Federation or World Chess Federation, commonly referred to by its French acronym FIDE ( Fédération Internationale des Échecs), is an international organization based in Switzerland that connects the various national chess federations and acts as the governing body of international chess competition. FIDE was founded in Paris, France, on July 20, 1924.World Chess Federation FIDE (April 8, 2009). Retrieved on 2013-07-28. Its motto is ''Gens una sumus'', Latin for "We are one Family". In 1999, FIDE was recognized by the (IOC). As of May 2022, there are 200 [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chess Rating Systems
A chess rating system is a system used in chess to estimate the strength of a player, based on their performance versus other players. They are used by organizations such as FIDE, the US Chess Federation (USCF or US Chess), International Correspondence Chess Federation, and the English Chess Federation. Most of the systems are used to recalculate ratings after a tournament or match but some are used to recalculate ratings after individual games. Popular online chess sites such as chess.com, Lichess, and Internet Chess Club also implement rating systems. In almost all systems, a higher number indicates a stronger player. In general, players' ratings go up if they perform better than expected and down if they perform worse than expected. The magnitude of the change depends on the rating of their opponents. The Elo rating system is currently the most widely used. The first modern rating system was used by the Correspondence Chess League of America in 1939. Soviet player Andrey Khacha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
