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Mark Glickman
The Glicko rating system and Glicko-2 rating system are methods of assessing a player's strength in games of skill, such as chess and Go. The Glicko rating system was invented by Mark Glickman in 1995 as an improvement on the Elo rating system, and initially intended for the primary use as a chess rating system. Glickman's principal contribution to measurement is "ratings reliability", called RD, for ''ratings deviation''. Overview Mark Glickman created the Glicko rating system in 1995 as an improvement on the Elo rating system. Both the Glicko and Glicko-2 rating systems are under public domain and have been implemented on game servers online (like Pokémon Showdown, Pokémon Go, Lichess, Free Internet Chess Server, Chess.com, Online Go Server (OGS), Counter Strike: Global Offensive, Quake Live, Team Fortress 2, Dota Underlords, Guild Wars 2, Splatoon 2, Dominion Online, TETR.IO, and competitive programming competitions. The Reliability Deviation (RD) measures the accuracy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chess
Chess is a board game for two players, called White and Black, each controlling an army of chess pieces in their color, with the objective to checkmate the opponent's king. It is sometimes called international chess or Western chess to distinguish it from related games, such as xiangqi (Chinese chess) and shogi (Japanese chess). The recorded history of chess goes back at least to the emergence of a similar game, chaturanga, in seventh-century India. The rules of chess as we know them today emerged in Europe at the end of the 15th century, with standardization and universal acceptance by the end of the 19th century. Today, chess is one of the world's most popular games, played by millions of people worldwide. Chess is an abstract strategy game that involves no hidden information and no use of dice or cards. It is played on a chessboard with 64 squares arranged in an eight-by-eight grid. At the start, each player controls sixteen pieces: one king, one queen, two rooks, t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quake Live
''Quake Live'' is a first-person arena shooter video game by id Software. It is an updated version of ''Quake III Arena'' that was originally designed as a free-to-play game launched via a web browser plug-in. On September 17, 2014, the game was re-launched as a standalone title on Steam. ''Quake Live'' was previously a free to play game, with subscription options offering additional arenas, game types and game server options. The game is no longer free to play after October 27, 2015 and subscription options were removed. Gameplay The gameplay of ''Quake Live'' consists of players attempting to kill more of their opponents than any other player or team in a given match. This is achieved by navigating a 3D environment and shooting other players with a variety of weapons, while collecting health, armor, weapons, ammo and various power-ups. As players get more advanced, they use other tricks and techniques such as rocket and strafe jumping. ''Quake Live'' was released as a fre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
TrueSkill
TrueSkill is a skill-based ranking system developed by Microsoft for use with video game matchmaking on Xbox Live. Unlike the popular Elo rating system, which was initially designed for chess, TrueSkill is designed to support games with more than two players. In 2018, Microsoft published details about an extended version of TrueSkill, named TrueSkill2. Calculation A player's skill is represented as a normal distribution \mathcal characterized by a mean value of \mu (mu, representing perceived skill) and a variance of \sigma (sigma, representing how "unconfident" the system is in the player's \mu value). As such \mathcal(x) can be interpreted as the probability that the player's "true" skill is x. On Xbox Live, players start with \mu = 25 and \sigma = 25/3; \mu always increases after a win and always decreases after a loss. The extent of actual updates depends on each player's \sigma and on how "surprising" the outcome is to the system. Unbalanced games, for example, result in eith ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 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] |
Regula Falsi
In mathematics, the ''regula falsi'', method of false position, or false position method is a very old method for solving an equation with one unknown; this method, in modified form, is still in use. In simple terms, the method is the trial and error technique of using test ("false") values for the variable and then adjusting the test value according to the outcome. This is sometimes also referred to as "guess and check". Versions of the method predate the advent of algebra and the use of equations. As an example, consider problem 26 in the Rhind papyrus, which asks for a solution of (written in modern notation) the equation . This is solved by false position. First, guess that to obtain, on the left, . This guess is a good choice since it produces an integer value. However, 4 is not the solution of the original equation, as it gives a value which is three times too small. To compensate, multiply (currently set to 4) by 3 and substitute again to get , verifying that the solution ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Australian Chess Federation
The Australian Chess Federation (ACF) is dedicated to promoting the game of chess in Australia, and is a member of FIDE, the World Chess Federation. 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. Member Associations The ACF consists of seven chess association members, from each of the six Australian states plus the Australian Capital Territory. New South Wales Chess Association 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 Chess ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dominion (card Game)
''Dominion'' is a card game created by Donald X. Vaccarino and published by Rio Grande Games. It was the first deck-building game, and inspired a genre of games building on its central mechanic. Each player begins with a small deck of cards, which they improve by purchasing cards from a common supply that varies from game to game. Cards can help the player's deck function, impede their opponents, or provide victory points. As of December 2022, fifteen expansions to the original ''Dominion'' have been released. The game has a medieval theme with card names referencing pre-industrial, monarchical, and feudal social structures. Comparisons about the game's feel are often drawn with collectible card games such as ''Magic: The Gathering''. Vaccarino, however, denies that ''Magic'' was the inspiration. When ''Dominion'' was released at the Spiel game fair in 2008, it was voted "best game of the fair" by the ''Fairplay'' polls. The next year it won the Spiel des Jahres and Deutscher ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Splatoon 2
is a 2017 third-person shooter game developed and published by Nintendo for the Nintendo Switch. It was released on July 21, 2017, and is a direct sequel to ''Splatoon'', which includes a new story-driven single-player mode and various online multiplayer modes. An expansion pack for the single-player mode titled ''Octo Expansion'' was subsequently released as downloadable content (DLC) on June 13, 2018. The game received generally positive reviews upon release. As of March 2022, ''Splatoon 2'' had sold over 13.3 million copies worldwide, selling more than twice as many as its predecessor and making it one of the best-selling Switch games. A sequel, ''Splatoon 3'', was released on the Nintendo Switch on September 9, 2022. Gameplay Like its predecessor, ''Splatoon 2'' is a third-person shooter in which players control characters, known as Inklings and Octolings, and use colored ink as ammunition. Ink is also used to cover the ground, or any paintable surface, in order to swim ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Guild Wars 2
''Guild Wars 2'' is a free-to-play, massively multiplayer online role-playing game developed by ArenaNet and published by NCSoft. Set in the fantasy world of Tyria, the core game follows the re-emergence of Destiny's Edge, a disbanded guild dedicated to fighting Elder Dragons, colossal Lovecraftian-esque entities that have seized control of Tyria in the time since the original '' Guild Wars'' (2005)'','' a plot line that was concluded in the latest expansion ''End of Dragons'' (2022). The game takes place in a persistent world with a story that progresses in instanced environments. ''Guild Wars 2'' is the fourth major entry in the ''Guild Wars'' series, and claims to be unique in the MMO genre by featuring a storyline that is responsive to player actions, something which is common in single player role-playing games but rarely seen in multiplayer ones. A dynamic event system replaces traditional questing, utilising the ripple effect to allow players to approach quests in di ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dota Underlords
''Dota Underlords'' is a 2020 auto battler game developed and published by Valve. The game is based on a popular ''Dota 2'' community-created game mode called ''Dota Auto Chess'', which was released in January 2019. ''Dota Underlords'' first released in early access in June 2019 before officially releasing on February 25, 2020, for Android, iOS, macOS, Linux, and Windows. The game is free to play and features cross-platform play. Gameplay ''Dota Underlords'' is an auto battler, a chess-inspired competitive strategy game, where players place characters, known as heroes, on an 8x8 grid-shaped battlefield. After a preparation phase, a team's heroes then automatically fight the opposing team without any further direct input from the player. A match features up to eight players online who take turns playing against each other in a one-on-one format, with the winner being the final player standing after eliminating all of the opposing heroes. In addition to the online matchmaking, sing ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Team Fortress 2
''Team Fortress 2'' is a 2007 multiplayer first-person shooter, first-person shooter game developed and published by Valve Corporation. It is the sequel to the 1996 ''Team Fortress'' Mod (video gaming), mod for ''Quake (video game), Quake'' and its 1999 remake, ''Team Fortress Classic''. The game was released in October 2007 as part of ''The Orange Box'' for Windows and the Xbox 360, and ported to the PlayStation 3 in December 2007. It was released as a standalone game for Windows in April 2008, and updated to support Mac OS X in June 2010 and Linux in February 2013. It is distributed online through Valve's digital retailer Steam (service), Steam, with Electronic Arts managing retail and console editions. Players join one of two teams—RED and BLU—and choose one of nine character classes to play as in game modes such as capture the flag and King of the Hill (game), king of the hill. Development was led by John Cook and Robin Walker (game designer), Robin Walker, the developer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Global Offensive
''Counter-Strike: Global Offensive'' (''CS:GO'') is a 2012 multiplayer tactical first-person shooter developed by Valve and Hidden Path Entertainment. It is the fourth game in the ''Counter-Strike'' series. Developed for over two years, ''Global Offensive'' was released for OS X, PlayStation 3, Windows, and Xbox 360 in August 2012, and for Linux in 2014. Valve still regularly updates the game, both with smaller balancing patches and larger content additions. The game pits two teams, Terrorists and Counter-Terrorists, against each other in different objective-based game modes. The most common game modes involve the Terrorists planting a bomb while Counter-Terrorists attempt to stop them, or Counter-Terrorists attempting to rescue hostages that the Terrorists have captured. There are nine official game modes, all of which have distinct characteristics specific to that mode. The game also has matchmaking support that allows players to play on dedicated Valve servers, in addition ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
