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**[[Home]] * [[Engines]] * The Turk** || [[image:220px-Tuerkischer_schachspieler_windisch4.jpg link="https://commons.wikimedia.org/wiki/File:Tuerkischer_schachspieler_windisch4.jpg"]] ||~ || **The Turk**, an experimental chess program developed in the mid 90s by two students of the [[University of Alberta]] and members of the //Games research group// <ref>[[http://www.cs.ualberta.ca/%7Egames/|Games research group]]</ref>, [[Yngvi Björnsson]] and [[Andreas Junghanns]], which competed the [[WMCCC 1996]] in [[https://en.wikipedia.org/wiki/Jakarta|Jakarta]]. It uses [[NegaScout]] and also includes most search enhancement found in contemporary chess programs, such as [[Extensions|extensions]], [[Quiescence Search|quiescence search]], and [[Transposition Table|transposition table]]. [[Move Ordering|Move ordering]] considers [[Captures|captures]] in [[MVV-LVA]] order, and the [[History Heuristic|history heuristic]] is used to sort the remaining moves. The [[Best Move|best move]] previously found in a position is stored in the transposition table and searched first where applicable. The Turk was test-bed of various [[Pruning|pruning techniques]] such as [[Uncertainty Cut-Offs]] <ref>[[Yngvi Björnsson]], [[Tony Marsland]], [[Jonathan Schaeffer]], [[Andreas Junghanns]] (**1997**). //Searching with Uncertainty Cut-offs.// [[ICGA Journal#20_1|ICCA Journal, Vol. 20, No. 1]]</ref> and [[Multi-Cut]] <ref> [[Yngvi Björnsson]], [[Tony Marsland]] (**2001**). //Multi-cut Alpha-Beta Pruning in Game Tree Search//. Theoretical Computer Science, Vol. 252, [[http://www.ru.is/faculty/yngvi/pdf/BjornssonM01a.pdf|pdf]]</ref> . || || The Turk <ref>Copper engraving from the book: [[https://en.wikipedia.org/wiki/Karl_Gottlieb_von_Windisch|Karl Gottlieb von Windisch]] (**1783**). //Briefe über den Schachspieler [[https://en.wikipedia.org/wiki/Wolfgang_von_Kempelen|von Kempelen]] nebst drey Kupferstichen die diese berühmte Maschine vorstellen//. [[https://en.wikipedia.org/wiki/The_Turk|The Turk from Wikipedia]]</ref> <ref>[[https://en.wikipedia.org/wiki/Wolfgang_von_Kempelen|Wolfgang von Kempelen from Wikipedia]]</ref> <ref>[[https://en.wikipedia.org/wiki/Johann_Nepomuk_Maelzel|Johann Nepomuk Maelzel from Wikipedia]]</ref> <ref>[[https://en.wikipedia.org/wiki/Maelzel%27s_Chess_Player|Maelzel's Chess Player from Wikipedia]]</ref> ||~ ||^ || [[toc]] =Namesake= * [[The Turk (TR)|The Turk]] by [[Yakup Ipek|Yakup İpek]] =See also= * [[Kempelen]] * [[Mr. Turk]] * [[Multi-Cut]] * [[Raspberry Turk]] * [[The Baron]] * [[Uncertainty Cut-Offs]] * [[WMCCC 1996]] =Publications= * [[Yngvi Björnsson]], [[Tony Marsland]], [[Jonathan Schaeffer]], [[Andreas Junghanns]] (**1997**). //Searching with Uncertainty Cut-offs.// [[ICGA Journal#20_1|ICCA Journal, Vol. 20, No. 1]] * [[Yngvi Björnsson]], [[Tony Marsland]], [[Jonathan Schaeffer]], [[Andreas Junghanns]] (**1997**). //Searching with Uncertainty Cut-offs//. [[Advances in Computer Chess 8]] * [[Yngvi Björnsson]], [[Tony Marsland]] (**1998**). //[[http://link.springer.com/chapter/10.1007/3-540-48957-6_2|Multi-cut Pruning in Alpha-Beta Search]]//. [[CG 1998]] * [[Yngvi Björnsson]], [[Tony Marsland]] (**2001**). //Multi-cut Alpha-Beta Pruning in Game Tree Search//. Theoretical Computer Science, Vol. 252, [[http://www.ru.is/faculty/yngvi/pdf/BjornssonM01a.pdf|pdf]] =Forum Posts= * [[http://groups.google.com/group/rec.games.chess.computer/msg/10c8fd07bc7f5d9a|Re: Computerised Chess Games]] by [[Valavan Manohararajah]], [[Computer Chess Forums|rgcc]], April 07, 1997 =External Links= ==Chess Engine== * [[http://www.game-ai-forum.org/icga-tournaments/program.php?id=199|The Turk's ICGA Tournaments]] ==Misc== * [[https://en.wikipedia.org/wiki/The_Turk|The Turk from Wikipedia]], the historic fake chess-playing machine * [[http://www.chessbase.de/nachrichten.asp?newsid=3052|Ein Türke in Paderborn]] by [[Mathias Feist]] and [[Karsten Bauermeister]], [[ChessBase|ChessBase Nachrichten]], April 06, 2004 (German) =References= <references /> =What links here?= [[include page="The Turk" component="backlinks" limit="40" ]] **[[Engines|Up one level]]**