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42-545: The ACF administers its own chess rating system for tournaments in Australia, and runs the ACF Grand Prix , a series of chess tournaments run by local organisers. The ACF also produces a monthly email newsletter featuring local and international news, and annotated games. Currently, Gary Wastell is the president of ACF. The ACF consists of seven chess association members, from each of the six Australian states plus

84-469: A K = 32 and C = 200. The Glicko system is a more modern approach, which was invented by Mark Glickman as an improvement of the Elo system. It is used by Chess.com , Free Internet Chess Server and other online chess servers. The Glicko-2 system is a refinement of the original Glicko system and is used by Lichess , Australian Chess Federation and other online websites. TSF (Turkey Chess Federation) uses

126-514: A 75% tournament outcome) – if having achieved worse than this then the number, again in percent, is added to the average of the tournament entrants' scores; thus in all cases recalibrating all players after each tournament completely. A consequence is at most 50 points gained or shed per tournament (namely by a totally winning or totally losing participant) away from the tournament average . Unlike other modern, nationally used chess systems, lower numbers indicate better performance. This system

168-593: A combination of ELO and UKD system. The ICCF U.S.A. used its own system in the 1970s. It now uses the Elo system. The Deutsche Wertungszahl system replaced the Ingo system in Germany. The Chessmetrics system was invented by Jeff Sonas . It is based on computer analysis of a large database of games and is intended to be more accurate than the Elo system. The Universal Rating System was developed by Mark Glickman , Jeff Sonas , J. Isaac Miller and Maxime Rischard, with

210-401: A cycle of at least 30 games. A player's contributing score for such averaging is taken to be their opponent's grade (but the gap is deemed to be 40 points, if greater than such a grade gap). However this is adjusted by adding 50 points for a win, subtracting 50 points for a loss, and making no adjustment for a draw. Negative grades are deemed to be nil, so a personal score of 50 arose quickly in

252-533: A linear approximation to his full system, negating the need for look-up tables of expected score. With that method, a player's new rating is R n e w = R o l d + K ( W − L 2 ) − ( K 4 C ) ∑ i D i {\displaystyle R_{new}=R_{old}+K\left({\frac {W-L}{2}}\right)-\left({\frac {K}{4C}}\right)\sum _{i}D_{i}} where R new and R old are

294-495: A rope and which is swaying in the wind". Any attempt to consolidate all aspects of a player's strength into a single number inevitably misses some of the picture. FIDE divides all its normal tournaments into categories by a narrower average rating of the players. Each category is 25 rating points wide. Category 1 is for an average rating of 2251 to 2275, category 2 is 2276 to 2300, etc. Women's tournaments currently commence 200 points lower, including its Category 1. The USCF uses

336-754: A similar system in 1946. The first one that made an impact on international chess was the Ingo system in 1948. The USCF adopted the Harkness system in 1950. Shortly after, the British Chess Federation started using a system devised by Richard W. B. Clarke . The USCF switched to the Elo rating system in 1960, which was adopted by FIDE in 1970. This was the system of the West German Chess Federation from 1948 until 1992, designed by Anton Hoesslinger and published in 1948. It

378-440: Is against 16 players). First, the difference in rating is recorded for each other player he faced. Then the expected score, against each, is determined from a table, which publishes this for every band of rating difference. For instance, one opponent was Vlastimil Hort , who was rated at 2600. The rating difference of 35 gave Portisch an expected score of "0.55". This is an impossible score as not 0, 1 ⁄ 2 or 1 but as this

420-424: Is higher than 0.5 even a draw will very slightly damage Portisch's rating; conversely a draw will very slightly improve Hort's rating. Portisch's expected score is summed for each of his matches, which gave a total expected score of 9.66. Then the formula is: K is 10; W is the actual match/tournament score; W e is the expected score. Portisch's new rating is 2635 + 10×(10.5−9.66) = 2643.4. Elo devised

462-454: Is the competition average plus 10 points per percentage point exceeding 50. If they score less, their new rating is the competition average minus 10 points per percentage point shy of 50. A player with a rating of 1600 plays in an eleven-round tournament and scores 2½–8½ (22.7%) against competition with an average rating of 1850. This is 27.3% below 50% (50–22.7%), so their new rating is 1850 − (10 × 27.3) = 1577. The ECF grading system

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504-642: Is the current ICCF General Secretary (as of May, 2013). Jason Bokar also took over from Corky Schakel as National Delegate in 2015. Dr. Bokar received his Bertl von Massow award in 2018 for meritorious service after serving as NAPZ Deputy Director, NAPZ Director, World Zone Director and ICCF-US National Delegate over the years 2001-2018. Other notable people inside ICCF-US are Dennis Doren, Friendly Match organizer and ICCF Rules Commissioner; Tom Biedermann who serves as ICCF Entry Commissioner and ICCF-US Deputy Director and Treasurer. The United States of America has had two World Champions. The first, GM Hans Berliner, won

546-574: 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

588-709: The International Correspondence Chess Federation (ICCF) for the territory of the United States of America . The organization was formed in 1909 as Correspondence Chess League of New York but quickly expanded to become the Correspondence Chess League of America (CCLA). It has published The Chess Correspondent regularly since 1930. The Correspondence Chess League of America (CCLA) was the first American chess club to become an ICCF affiliate. It

630-693: The 18th Olympiad, currently in progress. The ICCF affiliate has the right to hold national championships. The first tournament began July 1, 1972. The USCCC is played in two rounds with new preliminaries beginning every two years. At first only the Final was rated by ICCF. The winner qualifies for the World Championship semifinals. A full description of the US Correspondence Chess Championship can be found here . Champions are listed below. The United States hosted

672-414: The 2nd Olympiad, ending 4th (b) the 3rd Olympiad, ending 10th (c) the 5th Olympiad, ending 8th (d) the 8th Olympiad, ending 13th (e) the 11th Olympiad, ending 12th (f) the 13th Olympiad, ending tied for 7th-10th (g) the 14th Olympiad, ending with a bronze medal (in 3rd) (h) the 15th Olympiad, ending tied for 10th-11th (i) the 16th Olympiad, currently in progress (j) the 17th Olympiad, currently in progress (k)

714-609: The Australian Capital Territory. The New South Wales Chess Association (NSWCA) caters for chess players in New South Wales . It was established in 1900 and operates a rating service for its members as well as running a number of tournaments throughout the year. The New South Wales Junior Chess League (NSWJCL), which caters for players under 18 years of age, is affiliated with the NSWCA. Chess Victoria

756-764: The CCLA member only US Championship. The cost of the USPCU operation was borne entirely by the fees paid by US players participating in ICCF events. This did not solve all the problems since CCLA was still the official delegate to ICCF. By 1977 CCLA also presented a draft of an "umbrella organization" that was acceptable to ICCF. The United States Postal Chess Federation, USPCF, became that organization with its own constitution. Initially it provided access for international postal play for members of CCLA, United States Chess Federation (USCF), American Postal Chess Tournaments ( APCT ). kNights of

798-662: The City of Perth. The Tasmanian Chess Association is a not-for-profit organisation whose aims are to encourage interest, organise tournaments and oversee chess interests in Tasmania. TCA organised chess events allows participants the chance to earn or update their official Australian chess rating. The Australian Capital Territory Chess Association (ACTCA) aims to promote chess in the Australian Capital Territory and Queanbeyan . There are four chess clubs under

840-642: The Fifth World Championship in 1968. He was one of the top over-the-board players in the 1950s when he switched to correspondence chess . He won the Championship by qualifying through a series of preliminary events. He is the first person to be initiated into the (US) Chess Hall of Fame based on his correspondence record of 90 wins, 8 draws and 1 loss. GM Victor Palciauskas won the Tenth World Championship in 1984. He

882-850: The ICCF Secretaries of both countries. The North American Champion would be seeded into the World Championship Final. Today the winner is entered in only the ¾ final. The 1970 ICCF Congress agreed to this. The winner of the First North American Invitational Chess Championship was Robert G. Cross of the United States in 1971. In 1974, John Cleeve was the first North American to attend an ICCF Presidium meeting, at that time in Nice, France. The knowledge received there

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924-573: The International Ladies Master title. In 2007 Ruth Ann Fay received the Bertl von Massow award for meritorious service after serving as ICCF-US Secretary for seven years, and serving as NAPZ Director. Corky Schakel became ICCF-US Secretary (the title changed to ICCF-US National Federation Representative or Delegate), and served as NAPZ Director from 2007 to 2011 until Dr. Jason Bokar took over as NAPZ Director. Dr. Michael Millstone

966-898: The Queensland Chess Association, founded in 1897. The Chess Association of Queensland Inc (CAQ) is the body controlling organised over-the-board chess in the State of Queensland, Australia. CAQ is a member of the Sports Federation of Queensland Inc. CAQ is a non-profit body incorporated under the Associations Incorporation Act of Queensland; its objects, powers and organisation are specified in its Constitution. The Chess Association of Western Australia (CAWA) caters for chess players in Western Australia , primarily in and around

1008-802: The Square Table ( NOST ) and The Chess Connection (TCC) later joined. Robert A. Karch served as ICCF-US Secretary for over five years. Max Zavanelli took over as ICCF-US Secretary in June 1987. When Zavanelli took over, Victor Palciauskas and Hans Berliner were the only ICCF-US Grandmasters (GMs). As of the current editing (May, 2013), there are now 9 more GMs; Alik S. Zilberberg 1994, Joseph A. de Mauro 1997, Robin Smith and John C. Timm 2004, Dr. Jason Bokar 2007, Daniel M. Fleetwood 2008, Dr. Edward Duliba 2009, Jon Ostriker 2101, and Stephen Ham 2011. Two women, Dr. G. L. Langan and Dr. C. A. Rosenfield, have attained

1050-627: The State in all chess matters that are fostering and encouraging interests in chess and organising interstate matches as well as the Inter-club, State, Women's and City of Adelaide Championships. The SACA also manages the Chess Centre site where most state competitions are held. Junior chess is organised by the South Australian Junior Chess League, which is affiliated with SACA. The CAQ is the successor of

1092-622: The US was invited to play in an ICCF Olympiad event was in 1958. This was the Final Olympiad III team tourney in which the USSR was invited also to enter a team for the first time. Walter Muir took over the CCLA post of ICCF-US Secretary in 1969. Muir started playing chess in 1917 and didn't stop until shortly before his death in December 1999. Muir's father was Canadian. As a result, Muir

1134-502: The USCF system, a modification of the Elo system, in which the K factor varies and it gives bonus points for superior performance in a tournament. USCF ratings are generally 50 to 100 points higher than the FIDE equivalents. Elo gives an example of amending the rating of Lajos Portisch , a 2635-rated player before his tournament, who scores 10½ points of a possible 16 winning points (as this

1176-540: The change depends on the rating of their opponents. The Elo rating system is currently the most widely used (though it has many variations and improvements). The Elo-like ratings systems have been adopted in many other contexts, such as other games like Go , in online competitive gaming , and in dating apps . The first modern rating system was used by the Correspondence Chess League of America in 1939. Soviet player Andrey Khachaturov proposed

1218-405: The lower leagues and experienced novices aspire to a 100 grading. The cyclical averaging and cycle-persistent Grades are its hallmarks. The maximum gain in a single cycle is 90 points, which would entail beating much higher-rated opponents at every match. The opposite applies to losses. To convert between ECF and Elo grades, the formula ELO = (ECF * 7.50) + 700 was sometimes used. The Elo system

1260-438: The player's new and old ratings respectively, D i is the opponent's rating minus the player's rating, W is the number of wins, L is the number of losses, C = 200 and K = 32. The term (W-L) / 2 is the score above or below 0. ΣD / 4C is the expected score according to: 4C rating points equals 100%. The USCF used a modification of this system to calculate ratings after individual games of correspondence chess , with

1302-402: The program Crafty and argued that even a lower-ranked program (Elo around 2700) could identify good players. In their follow-up study, they used Rybka 3 to estimate chess player ratings. In 2017, Jean-Marc Alliot compared players using Stockfish 6 with an ELO rating around 3300, well above top human players. Correspondence Chess League of America ICCF U.S.A. is the member of

Australian Chess Federation - Misplaced Pages Continue

1344-495: The purview of ACTCA: ANU Chess Club, Belconnen Chess Club, Canberra Chess Club, and Tuggeranong Chess Club. Chess rating system 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

1386-617: The support of the Grand Chess Tour , the Kasparov Chess Foundation , and the Chess Club and Scholastic Center of Saint Louis . Many rating systems give a rating to players at a given time, but cannot compare players from different eras. In 2006, Matej Guid and Ivan Bratko pioneered a new way of rating players, by comparing their moves against the recommended moves of a chess engine . The authors used

1428-589: Was active in both US and Canadian chess. He won the Canadian CCA championship eight times between 1928 and 1942. He is the first native born American to earn an ICCF Master Title. He had 520 games rated by ICCF at the end of 1997. He was awarded an Honorary Membership in ICCF in 1998. Muir's promotional efforts increased US participation in ICCF events. He worked with John Cleeve of Canada to establish an ICCF North American Championship Invitational Tournament with five Canadian and ten USA players to be selected by

1470-802: Was created in 1917 as a merger of four clubs, one of which was a Canadian club. The number of Canadians in CCLA diminished after the Canadian Chess Association took over the Canadian Correspondence Chess Championship . CCLA accepted the invitation of the International Correspondence Chess Association (ICCA) to become a member in 1946. Participation began in 1947 with a team of 100 players competing against teams from Belgium, England, Finland, France, Holland, and Sweden conducted by ICCA. The first time

1512-556: Was founded in 1938 as the Victorian Chess Association and incorporated in 1983. In 2000 it was renamed Chess Victoria. The organisation's membership is composed of 16 affiliated chess clubs. The South Australian Chess Association (SACA) was established in 1894, taking over chess interests for the state of South Australia from the Adelaide Chess Club . SACA's responsibilities include: representing

1554-407: Was invented by Arpad Elo and is the most common rating system. It is used by FIDE , other organizations and some Chess websites such as Internet Chess Club and chess24.com . Elo once stated that the process of rating players was in any case rather approximate; he compared it to "the measurement of the position of a cork bobbing up and down on the surface of agitated water with a yard stick tied to

1596-688: Was nominated for a vacancy in the Finals because of his excellent performance in the North American Invitational Correspondence Chess Championship II. He had earned the GM title in 1983. USA teams have played in the Olympiad essentially since their beginning (which officially started in 1949). The USA team has made it into the finals in 11 of the 18 Olympiads to have been played that far: (a)

1638-501: Was noted in Chess Review by tournament organizer Kenneth Harkness , who expounded his invention of it in articles of 1956, 14 years later. It was used by the USCF from 1950 to 1960 and other leagues. When players compete in a tournament, the average rating of their competition is calculated. If a player scores 50%, they receive the average competition rating as their performance rating. If they score more than 50%, their new rating

1680-426: Was replaced by an Elo system, Deutsche Wertungszahl . It influenced some other rating systems. New players receive a high, fixed starting score. Players' new ratings centre on the average rating of entrants to their competition: then if having achieved better than a net draw set of result, minus the number of percentage points it is over 50% (e.g. a 12–4 or 24–8 wins-to-losses result is, as ever, noted as

1722-406: Was used by the English Chess Federation until 2020. It was published in 1958 by Richard W. B. Clarke . Each game has a large potential effect. Points (grades) are never immediately effective for every game won, lost or drawn, in a registered competition (including English congresses, local and county leagues, and registered, approved team events) but are averaged into personal grade (ECF Grade) over

Australian Chess Federation - Misplaced Pages Continue

1764-604: Was useful to both countries to create opportunities for their players. Walter Muir realized that the USA needed an ICCF affiliate that could represent members of all US clubs. He created the United States Postal Chess Union ( USPCU ) to be that US affiliate. He drafted a constitution with a President and Advisory Council with himself continuing as ICCF-US Director. Muir also began recruiting top non CCLA players to compete in ICCF events as well as to compete in

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