Changes

The Rybka team consists of primary author and [https://en.wikipedia.org/wiki/International_Master#International_Master_.28IM.29 International Master] [[Vasik Rajlich]], supported by [https://en.wikipedia.org/wiki/Grandmaster_%28chess%29 Grandmaster] and [[Evaluation|evaluation]] expert [[Larry Kaufman]] (Rybka 3), Rybka's main tester and [https://en.wikipedia.org/wiki/International_Master#Woman_Grandmaster_.28WGM.29 Women's GM (WGM)] and IM [[Iweta Rajlich]], the [[:Category:Opening Book AuthorsAuthor|opening book authors]] [[Jeroen Noomen]], [[Dagh Nielsen]], [[Jiří Dufek]] and [[Nick Carlin]], as well as Rybka primary tournament operator [[Hans van der Zijden]], hardware expert [[Lukas Cimiotti]] and Webmaster and Webdesigner ''Felix'' and ''Christoph Kling'' <ref>[http://rybkachess.com.www52.your-server.de/index.php?auswahl=Rybka+team Rybka - for the serious chess player - Rybka team]</ref> .

Rajlich's interpretation of [[Nodes per secondSecond|nodes]] and [[Depth|depth]] <ref>[http://www.talkchess.com/forum/viewtopic.php?t=14959 What Strelka tells about Rybka's nodecount and depth] by [[Ernest Bonnem]], [[CCC]], July 09, 2007</ref> <ref>[http://www.johnljerz.com/superduper/tlxdownloadsiteMAIN/id18.html Does Rybka Properly Count Positions Evaluated?] by [[John L. Jerz]]</ref> <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> <ref>[http://www.talkchess.com/forum/viewtopic.php?topic_view=threads&p=328195&t=32335 Re: Question to Larry Kaufman about Rybka] by [[Larry Kaufman]], [[CCC]], February 05, 2010</ref> <ref>[http://www.open-chess.org/viewtopic.php?f=5&t=1004 Node counting] by [[Mark Watkins|BB+]], [[Computer Chess Forums|OpenChess Forum]], January 20, 2011</ref> , and the [https://en.wikipedia.org/wiki/Rybka#Strelka_controversy controversy] about [[Strelka]] <ref>[http://rybkaforum.net/cgi-bin/rybkaforum/topic_show.pl?tid=1655 Strelka = Rybka 1.0] by DarkAvenger, [[Computer Chess Forums|Rybka Forum]], July 07, 2007</ref> <ref>[http://rybkaforum.net/cgi-bin/rybkaforum/topic_show.pl?tid=3006 Strelka 2.0] by [[Vasik Rajlich]], [[Computer Chess Forums|Rybka Forum]], January 11, 2008</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 Re: Is Rybka a derivative of Fruit?] by [[Vasik Rajlich]], [[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] by duncan, [[Computer Chess Forums|Rybka Forum]], August 25, 2008</ref> , as 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 rumors <ref>[https://www.stmintz.com/ccc/index.php?id=467208 Is Rybbka 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.

The appearance of the [[Ippolit]] [[:Category:Open Source|open source program]] by pseudonymous authors in May 2009, and Rajlich's claim it is a [[Clones:Category:Clone|clone]] of ''Rybka 3'' <ref>[http://rybkaforum.net/cgi-bin/rybkaforum/topic_show.pl?tid=12995 Official statement on [Deleted]?] by [[Vasik Rajlich]], [[Computer Chess Forums|Rybka Forum]], October 21, 2009</ref> without any substantiation and evidence, caused further discussions <ref>[http://www.talkchess.com/forum/viewtopic.php?t=30296 I'm in doubt if RobboLito is a clone] by [[Volker Pittlik]], [[CCC]], October 24, 2009</ref> .