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Computer chess includes both hardware (dedicated computers) and software capable of playing chess. Computer chess provides opportunities for players to practice even in the absence of human opponents, and also provides opportunities for analysis, entertainment and training. Computer chess applications that play at the level of a chess master or higher are available on hardware from supercomputers to smart phones. Standalone chess-playing machines are also available. Stockfish, GNU Chess, Fruit, and other free open source applications are available for various platforms. Computer chess applications, whether implemented in hardware or software, utilize different strategies than humans to choose their moves: they use heuristic methods to build, search and evaluate trees representing sequences of moves from the current position and attempt to execute the best such sequence during play. Such trees are typically quite large, thousands to millions of nodes. The computational speed ...
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Chess Engine
In computer chess, a chess engine is a computer program that analyzes chess or chess variant positions, and generates a move or list of moves that it regards as strongest. A chess engine is usually a back end with a command-line interface with no graphics or windowing. Engines are usually used with a front end, a windowed graphical user interface such as Chessbase or WinBoard that the user can interact with via a keyboard, mouse or touchscreen. This allows the user to play against multiple engines without learning a new user interface for each, and allows different engines to play against each other. Many chess engines are now available for mobile phones and tablets, making them even more accessible. History The meaning of the term "chess engine" has evolved over time. In 1986, Linda and Tony Scherzer entered their program Bebe into the 4th World Computer Chess Championship, running it on "Chess Engine," their brand name for the chess computer hardware made, and marke ...
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Stockfish (chess)
Stockfish is a free and open-source chess engine, available for various desktop and mobile platforms. It can be used in chess software through the Universal Chess Interface. Stockfish has consistently ranked first or near the top of most chess-engine rating lists and, as of October 2022, is the strongest CPU chess engine in the world. It has won the Top Chess Engine Championship 13 times and the Chess.com Computer Chess Championship 19 times. Stockfish is developed by Marco Costalba, Joona Kiiski, Gary Linscott, Tord Romstad, Stéphane Nicolet, Stefan Geschwentner, and Joost VandeVondele, with many contributions from a community of open-source developers. It is derived from Glaurung, an open-source engine by Tord Romstad released in 2004. Features Stockfish can use up to 1024 CPU threads in multiprocessor systems. The maximal size of its transposition table is 32 TB. Stockfish implements an advanced alpha–beta search and uses bitboards. Compared to other engines, it i ...
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Fruit (software)
Fruit is a chess engine developed by Fabien Letouzey. In the SSDF rating list released on November 24, 2006, Fruit version 2.2.1 had a rating of 2842. In the CEGT rating list released on January 24, 2007, Fruit version 2.2.1 had a rating of 2776. History At the World Computer Chess Championship in Reykjavík in 2005, Fruit 2.2 scored 8.5 out of 11, finishing in second place behind Zappa. Until Version 2.1 (''Peach''), Fruit was free and open-source software subject to the requirements of the GNU General Public License and as such contributed much to the development in computer chess in recent years. Some people still work on the v2.1 source code and have created variations from the original Fruit. As of July 23, 2007, Fruit became freeware. Fruit 2.3.1 was one of the top 3 free UCI chess engines. Technical details of Fruit 2.1 Fruit uses the classical Negascout (principal variation search) algorithm with iterative deepening to traverse the game tree. It also uses the null ...
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Fruit (chess Engine)
Fruit is a chess engine developed by Fabien Letouzey. In the SSDF rating list released on November 24, 2006, Fruit version 2.2.1 had a rating of 2842. In the CEGT rating list released on January 24, 2007, Fruit version 2.2.1 had a rating of 2776. History At the World Computer Chess Championship in Reykjavík in 2005, Fruit 2.2 scored 8.5 out of 11, finishing in second place behind Zappa. Until Version 2.1 (''Peach''), Fruit was free and open-source software subject to the requirements of the GNU General Public License and as such contributed much to the development in computer chess in recent years. Some people still work on the v2.1 source code and have created variations from the original Fruit. As of July 23, 2007, Fruit became freeware. Fruit 2.3.1 was one of the top 3 free UCI chess engines. Technical details of Fruit 2.1 Fruit uses the classical Negascout (principal variation search) algorithm with iterative deepening to traverse the game tree. It also uses the null ...
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GNU Chess
GNU Chess is a free software chess engine and command-line interface chessboard. The goal of GNU Chess is to serve as a basis for research, and as such it has been used in numerous contexts. GNU Chess is free software, licensed under the terms of the GNU General Public License version 3 or any later version, and is maintained by collaborating developers. As one of the earliest computer chess programs with full source code available, it is one of the oldest for Unix-based systems and has since been ported to many other platforms. Features As of 2 September 2017 GNU Chess 5.60 is rated at 2813 Elo points (when using one CPU) on CCRL's 40-moves-in-40-minutes list. For comparison, the strongest chess engine in the list using one CPU, Strelka 5.5, has an Elo rating of 3108 (the 295 ELO point difference indicates that Strelka 5.5 would beat GNU Chess 5.60 in about 85% of games). On the same list, Fritz 8 is rated at only 2701, and that program in the 2004 Man vs Machine World ...
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Frans Morsch Name On The ICs
Frans is an Afrikaans, Danish, Dutch, Finnish, Icelandic, Norwegian, and Swedish given name, sometimes as a short form of ''François''. One cognate of Frans in English is '' Francis''. Given name * Frans van Aarssens (1572–1641), Dutch diplomat and statesman * Frans Ackerman (1330–1387), Flemish statesman * Frans Adelaar (born 1960), Dutch football player and manager * Frans Alphons Maria Alting von Geusau (born 1933), Dutch legal scholar and diplomat * Frans Aerenhouts (born 1937), Belgian cyclist * Frans Ananias (born 1972), Namibian footballer * Frans Andersson (1911–1988), Danish bass-baritone * Frans Andriessen (1929–2019), Dutch politician * Frans Anneessens (1660–1719), Flemish protest leader * Frans van Anraat (born 1942), Dutch businessman and convicted war criminal * Frans Badens ( fl. 1571–1618), Flemish painter * Frans Bak (born 1958), Danish composer, choral conductor, saxophonist, and pianist * Frans Decker (1684–1751), 18th-century painter from t ...
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Transposition Table
{{no footnotes, date=November 2017 A transposition table is a cache of previously seen positions, and associated evaluations, in a game tree generated by a computer game playing program. If a position recurs via a different sequence of moves, the value of the position is retrieved from the table, avoiding re-searching the game tree below that position. Transposition tables are primarily useful in perfect-information games (where the entire state of the game is known to all players at all times). The usage of transposition tables is essentially memoization applied to the tree search and is a form of dynamic programming. Transposition tables are typically implemented as hash tables encoding the current board position as the hash index. The number of possible positions that may occur in a game tree is an exponential function of depth of search, and can be thousands to millions or even much greater. Transposition tables may therefore consume most of available system memory and ar ...
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Winboard
XBoard is a graphical user interface chessboard for chess engines under the X Window System. It is developed and maintained as free software by the GNU project. WinBoard is a port of XBoard to run natively on Microsoft Windows. Overview Originally developed by Tim Mann as a front end for the GNU Chess engine, XBoard eventually came to be described as a graphical user interface for XBoard engines. It also acts as a client for Internet Chess Servers, and e-mail chess, and can allow the user to play through saved games. XBoard/WinBoard remain updated, and the Chess Engine Communication Protocol has been extended to meet the needs of modern engines (which have features such as hash tables, multi-processing and end-game tables, which could not be controlled through the old protocol). XBoard/WinBoard also fully support engines that play chess variants, such as Fairy-Max. This means the GUI is able to display a wide range of variants such as xiangqi (Chinese chess), shogi (Japanese c ...
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RS Chess Computer
RS may refer to: Businesses and organizations Sport * RS Sailing, an international designer and builder of sailboats and dinghies * Ford TeamRS, Ford Motor Company's European performance car and motorsport division * Renault Sport, performance and motorsport division of automobile manufacturer Renault * Queens Park Rangers F.C., a professional football club from Shepherd's Bush, London, commonly nicknamed 'The Rs' Other businesses and organizations * RS Group, entertainment & media company in Thailand * RS Group plc, electronics & industrial distributor in England ** RS Components, an international electronic component distributor * Relief Society, an official auxiliary of The Church of Jesus Christ of Latter-day Saints (LDS Church) * République solidaire, a French political party * Roberval and Saguenay Railway (reporting mark RS) * Russian Party (''Ruska stranka''), a political party in Serbia Places * Republic of Serbia, country (ISO 3166-1 code RS) * Republic of Sloveni ...
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Sargon (chess)
''Sargon'' (or ''SARGON'') is a line of chess-playing software for personal computers. The original ''SARGON'' from 1978 was written in assembly language by Dan and Kathleen "Kathe" Spracklen for the Z80-based Wavemate Jupiter III. History ''SARGON'' was introduced at the 1978 West Coast Computer Faire where it won the first computer chess tournament held strictly for microcomputers, with a score of 5–0. This success encouraged the authors to seek financial income by selling the program directly to customers. Since magnetic media were not widely available at the time, the authors placed an advert in ''Byte'' magazine selling for $15 photocopied listings that would work in any Z80-based microcomputer. Availability of the source code allowed porting to other machines. For example, the March–April 1979 issue of '' Recreational Computing'' describes a project that converted Sargon to an 8080 program by using macros. Later the Spracklens were contacted by Hayden Books and a ...
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IPPOLIT
IPPOLIT is an open-source chess program released by authors using pseudonyms, Yakov Petrovich Golyadkin, Igor Igorovich Igoronov, Roberto Pescatore, Yusuf Ralf Weisskopf, Ivan Skavinsky Skavar, and Decembrists. The program is a console application that communicates with a chess Graphical User Interface (GUI) via standard Universal Chess Interface protocol. IPPOLIT is a bitboard chess engine optimized for 64-bit architecture with native support for both 32-bit/64-bit Linux and Windows operating systems. With about 3100 ELO it is listed in TOP 50 strongest chess programs. Releases * IPPOLIT, released on May 2, 2009, was the first release of the series. It was split in multiple usenet messages. RobboLito released in September 2009, was the second installment of the IPPOLIT series. Endgame tablebaseRobboBasessupport was introduced. Igorrit released in January 2010, added Multi-core support, and was the third installment of the IPPOLIT series. IvanHoe released in January 2010, is ...
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