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Vasik Rajlich

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a Czech-American <ref>[https://en.wikipedia.org/wiki/Vasik_Rajlich Vasik Rajlich from Wikipedia]</ref> computer scientist and [[Massachusetts Institute of Technology|MIT]] graduate <ref>[http://blogs.spectrum.ieee.org/gizmos/2007/06/engineer_shocks_chess_world.htm Engineer Shocks Chess World] from [http://www.spectrum.ieee.org/ IEEE Spectrum online]</ref>, where his thesis advisor was [[David McAllester|McAllester]] in 1993 <ref>[https://www.stmintz.com/ccc/index.php?id=471117 Re: To author of Rybka] by Vasik Rajlich, [[CCC]], December 17, 2005</ref>. Vasik is [https://en.wikipedia.org/wiki/International_Master International Master] in chess and primary author of [[Fritz|Fritz 15]] <ref>[https://shop.chessbase.com/en/products/fritz_15_english Fritz 15 - English Version], [[ChessBase|ChessBase Shop]]</ref> <ref>[http://en.chessbase.com/post/fritz-15-engine-questions-and-answers Fritz 15 engine - questions and answers] by [[Albert Silver]], [[ChessBase|ChessBase News]], January 04, 2016</ref> and Fritz 16, and before, [[Rybka]] <ref>[http://www.rybkachess.com/index.php Welcome to RybkaChess.com!]</ref>, the former world strongest chess program, which arose that strong end of 2005 <ref>[https://www.stmintz.com/ccc/index.php?id=465686 Rybka 1.0 beta release - need testers] by Vasik Rajlich, [[CCC]], November 30, 2005</ref> <ref>[https://www.stmintz.com/ccc/index.php?id=466792 Rybka 1.0 Announcement] by Vasik Rajlich, [[CCC]], December 05, 2005</ref>. Vasik is married with [[Iweta Rajlich]], a Polish chess [https://en.wikipedia.org/wiki/International_Master International Master] and [https://en.wikipedia.org/wiki/Woman_Grandmaster Woman Grandmaster] <ref>[https://en.wikipedia.org/wiki/Iweta_Rajlich Iweta Rajlich from Wikipedia]</ref> and main Rybka tester <ref>[http://rybkachess.com.www52.your-server.de/index.php?auswahl=Rybka+team Rybka team]</ref>.
Vasik Rajlich's interpretation of [[Node|nodes]] and [[Depth|depth]] <ref>[http://www.talkchess.com/forum/viewtopic.php?t=23037 To Jeroen and interested minds, re. Tiger node count] by [[Christophe Théron]], [[CCC]], August 15, 2008</ref> and the [[Strelka]] controversy <ref>[https://en.wikipedia.org/wiki/Rybka#Strelka_controversy Strelka controversy from Wikipedia]</ref> <ref>[http://rybkaforum.net/cgi-bin/rybkaforum/topic_show.pl?tid=3006 Strelka 2.0] by Vasik Rajlich, January 11, 2008</ref> <ref>[http://www.talkchess.com/forum/viewtopic.php?t=37762 Fabien's open letter to the community] by [[Tord Romstad]], [[CCC]], January 23, 2011</ref> <ref>[http://www.open-chess.org/viewtopic.php?f=3&t=1014 Fabien's open letter to the community] by [[Tord Romstad]], [[Computer Chess Forums|OpenChess Forum]], January 23, 2011</ref> raised suspicions about the initial origin of Rybka 1.0 <ref>[http://www.talkchess.com/forum/viewtopic.php?t=23118 Rybka 1.0 vs. Strelka] by [[Zach Wegner]], [[CCC]], August 19, 2008</ref> <ref>[http://www.talkchess.com/forum/viewtopic.php?t=23249 Questions for Vas] by [[Zach Wegner]], [[CCC]], August 25, 2008</ref>, but Vasik Rajlich categorically denied Rybka 1.0 was based on [[Fruit]] <ref>[http://rybkaforum.net/cgi-bin/rybkaforum/topic_show.pl?pid=19118#pid19118 Is Rybka a derivative of Fruit?], [[Computer Chess Forums|Rybka Forum]], July 14, 2007</ref> <ref>[http://rybkaforum.net/cgi-bin/rybkaforum/topic_show.pl?tid=6772 question to vas on similarity of rybka 1.0 to fruit], [[Computer Chess Forums|Rybka Forum]], August 25, 2008</ref>, as already mentioned by [[Chrilly Donninger]] in 2005 <ref>[https://www.stmintz.com/ccc/index.php?id=469209 Rybka uses PVS and not MTD(f). Its no Fruit-Clone] by [[Chrilly Donninger]], [[CCC]], December 12, 2005</ref> after early rumours <ref>[https://www.stmintz.com/ccc/index.php?id=467208 Is Rybka a fruit clone?] by Ziad Haddad, [[CCC]], December 06, 2005</ref> and questions <ref>[https://www.stmintz.com/ccc/index.php?id=469130 Rybka - How much Fruit is inside?] by [[Daniel Mehrmann]], [[CCC]], December 11, 2005</ref> arose, but despite confusing Fruit using [[MTD(f)]], Donninger claimed Rybka was basically Fruit in 2007 <ref>[https://www.hiarcs.net/forums/viewtopic.php?t=398&start=19 Re: I know something of Dr.Donninger] by [[Harvey Williamson]], [[Computer Chess Forums|Hiarcs Forum]], October 16, 2007, quoted with the kind permission of [[Chrilly Donninger|Chrilly]] and [[Enrique Irazoqui|Enir]]</ref>. On January 19, 2011 [[ICGA]] president [[David Levy]] broached on [[:Category:Clone|cloning]] issues in a ''ChessVibes'' column, covering the controversies, where Vasik again confirmed Rybka source is original after he was invited to comment on [[Zach Wegner|Zach Wegner’s]] analysis <ref>Rybka/Fruit: evaluation by [[Zach Wegner]], 2010</ref> a few days before Levy wrote his article <ref>Attack of the clones | ChessVibes by [[David Levy]], 19 February, 2011</ref>. In June 2011, the [[ICGA]] has [[World Computer Chess Championship#RybkaDisqualification|disqualified]] and banned [[Rybka]] and its programmer Vasik Rajlich from previous and future World Computer Chess Championships.
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