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'''Centaur''' (Russian: Кентавр),<br/>
a chess program by primary author [[Victor Vikhrev]] and [[Alexey Manjakhin]]. Centaur won the Its development already started in 1971, when Victor Vikhrev wrote his first chess program in [[First Soviet Computer-Chess Championship 1988Algol]] in for the [https://en.wikipedia.org/wiki/UlanBESM#BESM-Ude Ulan6 BESM-Ude6], and further competed at . During the 80s the [[First International Chessprogram was re-Computer Tournament written in the USSR 1989]] in [https://en.wikipedia.org/wiki/Moscow Moscow], at three [[World Computer Chess Championship|World Computer Chess ChampionshipsPascal]], the to run on an [[WCCC 1989IBM PC]] in [https<ref>http://enadamant1.wikipediafromru.org/wikicom/Edmonton Edmonton], the [[WCCC 1992]] in [https://en.wikipediacentaur.org/wiki/Madrid Madrid]html Кентавр (Russian, and the [[WCCC 1999]] in [https:no longer available)<//en.wikipedia.org/wiki/Paderborn Paderborn], four [[World Microcomputer Chess Championship|World Microcomputer Chess Championships]] ref> <ref>[https://wwwchesspro.game-ai-forum.orgru/guestnew/icga-tournamentslooknullmessage/program.php?themeid=54&id=57 Centaur's ICGA Tournaments31&page=10#54-31-4381 ChessPro online | Шахматный форум | Новости мира движков](Russian)</ref> , two . As one of the rare instances of a [[UniformBest-Platform Computer Chess ChampionshipFirst|Uniformbest-Platform Computer Chess Championshipsfirst]]searcher, Centaur keeps its complete [[Search Tree|search tree]] in [[Memory|memory]] and considers multiple optimistic and three pessimistic [[Aegon TournamentsEvaluation|Aegon Man-Machine Tournamentsevaluation]]scores to grow the tree.
=Tournament Play=
Centaur won the [[First Soviet Computer-Chess Championship 1988]] in [https://en.wikipedia.org/wiki/Ulan-Ude Ulan-Ude], and further competed at the [[First International Chess-Computer Tournament in the USSR 1989]] in [https://en.wikipedia.org/wiki/Moscow Moscow], at three [[World Computer Chess Championship|World Computer Chess Championships]], the [[WCCC 1989]] in [https://en.wikipedia.org/wiki/Edmonton Edmonton], the [[WCCC 1992]] in [https://en.wikipedia.org/wiki/Madrid Madrid], and the [[WCCC 1999]] in [https://en.wikipedia.org/wiki/Paderborn Paderborn], four [[World Microcomputer Chess Championship|World Microcomputer Chess Championships]] <ref>[https://www.game-ai-forum.org/icga-tournaments/program.php?id=57 Centaur's ICGA Tournaments]</ref> , two [[Uniform-Platform Computer Chess Championship|Uniform-Platform Computer Chess Championships]], and three [[Aegon Tournaments|Aegon Man-Machine Tournaments]].
=Dragon=
Centaur, along with some code units incorporated from [[Mirage]] by [[Vladimir Rybinkin]] and [[Yuri Shpeer]], further evolved to the [[Dragon (Chess Assistant)|Dragon]] analysis engine of [[ChessOK|Convekta's]] [[Chess Assistant]] database <ref>[http://chessok.com/?page_id=19894 Chess Assistant] - [[ChessOK]]</ref>, not to confused with the original [[Dragon RU|Dragon]] engine by Yuri Shpeer <ref>[http://forum.ixbt.com/topic.cgi?id=26:39751-20#308 Заставить работать машину клиента! [20] - Конференция iXBT.com], September 01, 2009</ref>.
Centaur uses 5 values for estimation of chess position (one realistic, two pessimistic and two optimistic). All 5 values of a position are saved in memory of computer and are used for choice of direction of investigation of position.
Last modification of Centaur uses some code units from program [[Mirage]], which is made in Russia. Principles of Centaur are described in [[ICGA Journal|ICCA Journal]] 1996, 2 <ref>[[Victor Vikhrev]] ('''1996''') . ''The Choice of a Research Direction''. [[ICGA Journal#19_2|ICCA Journal, Vol. 19, No. 2]]</ref>
=See also=
=Publications=
* [[Victor Vikhrev]] ('''1996''') . ''The Choice of a Research Direction''. [[ICGA Journal#19_2|ICCA Journal, Vol. 19, No. 2]]
=Forum Posts=
=External Links=
==Chess Program==
* [https://www.game-ai-forum.org/icga-tournaments/program.php?id=57 Centaur's ICGA Tournaments]
* [httphttps://adamant1chesspro.fromru.com/centaur.html Кентавр] (Russian): [http:ru/guestnew/translate.googleusercontent.comlooknullmessage/translate_c?hlthemeid=de54&ieid=UTF831&prevpage=_t&rurl10#54-31-4381 ChessPro online | Шахматный форум | Новости мира движков] (Russian)=translate.google.com&sl=ru&tl=en&uMisc=http://adamant1.fromru.com/centaur.html&usg=ALkJrhh9ykrIOkFOeXrwD7waeVgWzKCkQA Centaur], translated by [https://en.wikipedia.org/wiki/Google_Translate Google Translate]* [http://www.top-5000.nl/cp.htm Download Chess Programs] hosted by [[Ed Schroder|Ed Schröder]]
* [https://en.wikipedia.org/wiki/Advanced_Chess Advanced Chess from Wikipedia] (Centaur chess)
* [https://en.wikipedia.org/wiki/Centaur_%28disambiguation%29 Centaur (disambiguation) from Wikipedia]
