Rybka (English Wikipedia)

Riis, Søren (August 1, 2014). "What makes a chess program original? Revisiting the Rybka case". Entertainment Computing. 5 (3): 189–204. doi:10.1016/j.entcom.2014.04.004.
Dailey, D.; Hair, A.; Watkins, M. (August 1, 2014). "Move similarity analysis in chess programs". Entertainment Computing. 5 (3): 159–171. doi:10.1016/j.entcom.2013.10.002.

extremetech.com (Global: 4,667^th place; English: 3,322^nd place)

Rybka, the world’s best chess engine, outlawed and disqualified. Extreme Tech (June 29, 2011). Retrieved on October 12, 2013.

fide.com (Global: 997^th place; English: 861^st place)

ethics.fide.com

"FIDE Ethics Commission Judgement Case n. 2/2012" (PDF). FIDE.
"Report Case n. 2/2012 FIDE Ethics Commission" (PDF). FIDE Ethics Commission.

free.fr (Global: 321^st place; English: 724^th place)

americanfoot.free.fr

"Swiss System Season 3 Top 200 results". Retrieved February 22, 2011.

harveywilliamson.com (Global: low place; English: low place)

Levy, David (January 9, 2012). "No Miscarriage of Justice – Just Biased Reporting". harveywilliamson.com. p. 10. Retrieved January 9, 2012.
Watkins, Mark (January 9, 2012). "A Critical Analysis Of The Four Parts Of Riis" (PDF). harveywilliamson.com. p. 16. Retrieved January 9, 2012.

hurriyetdailynews.com (Global: 1,645^th place; English: 1,289^th place)

'Cheating' computer disqualified from chess tournament. Hurriyet Daily News (June 30, 2011). Retrieved on October 12, 2013.

husvankempen.de (Global: low place; English: low place)

"CEGT 40/20". Chess Engines Grand Tournament. July 11, 2010. Archived from the original on March 8, 2011. Retrieved July 12, 2010.

inwoba.de (Global: low place; English: low place)

IPON Archived June 12, 2011, at the Wayback Machine; Ponder ON Rating list

open-aurec.com (Global: low place; English: low place)

"Chess War V D Results". Retrieved February 22, 2011.
ChessWar VI D 40m/20' – Final standings after round 11. Open-aurec.com. Retrieved on October 12, 2013.
ChessWar VII C 40m/20' – Final standings after round 11. Open-aurec.com. Retrieved on October 12, 2013.

playwitharena.com (Global: low place; English: low place)

"News-Overview". playwitharena.com. Archived from the original on February 18, 2009.

rybkachess.com (Global: low place; English: low place)

An Open Letter and $100,000 challenge. Rybkachess.com. Retrieved on October 12, 2013.
"Rybka 3 Release Notes". August 6, 2008. Retrieved August 7, 2008.
Rybka Cluster – for the elite chess player. Rybkachess.com (February 1, 2011). Retrieved on October 12, 2013.

rybkaforum.net (Global: low place; English: low place)

Rajlich, Vasik (March 5, 2011). "Rybka 4.1 Release Notes". Rybkaforum.net. Archived from the original on March 5, 2012. Retrieved March 27, 2014.
rybka source code Archived September 16, 2009, at the Wayback Machine. Rybkaforum.net. Retrieved on October 12, 2013.
Rybka Chess Community Forum July 2007 Archived September 16, 2009, at the Wayback Machine. rybkaforum.net
Rybka Chess Community Forum July 2007 Archived September 16, 2009, at the Wayback Machine. rybkaforum.net
Rybka @ Amsterdam 15th WCCC Archived September 16, 2009, at the Wayback Machine. Rybkaforum.net. Retrieved on October 12, 2013.
Rybka vs Dzindzichashvili – information center Archived April 13, 2023, at the Wayback Machine. Rybkaforum.net. Retrieved on October 12, 2013.
Rybka vs Ehlvest II – information center. Rybkaforum.net. Retrieved on October 12, 2013.
PGNs of game 3 and 4 with Rybka evaluation, Zappa won both Archived December 16, 2008, at the Wayback Machine. Rybkaforum.net. Retrieved on October 12, 2013.
Rybka 4 update Archived June 10, 2010, at the Wayback Machine. Rybkaforum.net. Retrieved on October 12, 2013.
"Strelka 1.0 x32:Rybka clone?". Rybkaforum.net. October 12, 2013.
"Strelka = Rybka 1.0". Rybkaforum.net. 2007. Archived from the original on September 16, 2009. Retrieved October 12, 2013.
"Osipovs arguments about Strelka". Rybkaforum.net. 2008. Archived from the original on September 16, 2009. Retrieved October 12, 2013.
"Strelka 2.0". Rybkaforum.net. Retrieved October 12, 2013.
Official statement on [Deleted]?. Rybkaforum.net (October 21, 2009). Retrieved on October 12, 2013.
Is Rybka a derivative of Fruit?. Rybkaforum.net. Retrieved on October 12, 2013.
Rybka Chess Community Forum. Rybkaforum.net. Retrieved on October 12, 2013.
FIDE: Complaint against ICGA Archived March 4, 2016, at the Wayback Machine (2012)

stmintz.com (Global: low place; English: low place)

Rajlich, Vasik (December 5, 2005). "Subject: Rybka 1.0 Announcement". Computer Chess Club Archivesn. Archived from the original on March 2, 2021. Retrieved October 25, 2025. [...]
The first piece of good news is that Rybka Beta 1.0 will be available for free download until midnight tonight (Dec 5) on Leo's website.
[...]

superchessengine.com (Global: low place; English: low place)

"Vasik Rajlich". Superchessengine.com. December 20, 2005. Archived from the original on March 5, 2011. Retrieved January 2, 2011.

talkchess.com (Global: low place; English: low place)

View topic – Fabien's open letter to the community. TalkChess.com. Retrieved on October 12, 2013.
"Example Computer Chess Forum disagreements". ComputerChessClub.
Rybka en de ICGA. Computerschaak.nl. Retrieved on October 12, 2013.
Programmer's Open Letter

techworld.com (Global: low place; English: low place)

news.techworld.com

Tech World: World's best chess program loses titles in plagiarism row Archived October 14, 2013, at the Wayback Machine. News.techworld.com. Retrieved on October 12, 2013.

top-5000.nl (Global: low place; English: low place)

Schröder, Ed. "Rybka controversy - FIDE complaint and verdict". Archived from the original on May 18, 2015.

univ-lille3.fr (Global: low place; English: low place)

grappa.univ-lille3.fr

"7th World Computer Chess Championship". Grappa.univ-lille3.fr. Retrieved January 2, 2011.

utexas.edu (Global: 916^th place; English: 706^th place)

webspace.utexas.edu

Evaluation Archived August 11, 2011, at the Wayback Machine. Webspace.utexas.edu. Retrieved on October 12, 2013.

uvt.nl (Global: low place; English: low place)

ilk.uvt.nl

ICGA Investigation Documents Archived March 3, 2016, at the Wayback Machine. None. Retrieved on October 12, 2013.

vrichey.de (Global: low place; English: low place)

Richey, Volker. "CCT6 Results". Retrieved February 22, 2011.

washingtontimes.com (Global: 1,029^th place; English: 657^th place)

Courchane, Claire. (June 30, 2011) Computer chess champ stripped of its four titles. Washington Times. Retrieved on October 12, 2013.

wbec-ridderkerk.nl (Global: low place; English: low place)

"Bayesian Elo Ratinglist WBEC Ridderkerk edition 1 – 16". September 22, 2009. Retrieved April 27, 2010.

web.archive.org (Global: 1^st place; English: 1^st place)

Rajlich, Vasik (December 5, 2005). "Subject: Rybka 1.0 Announcement". Computer Chess Club Archivesn. Archived from the original on March 2, 2021. Retrieved October 25, 2025. [...]
The first piece of good news is that Rybka Beta 1.0 will be available for free download until midnight tonight (Dec 5) on Leo's website.
[...]
Rajlich, Vasik (March 5, 2011). "Rybka 4.1 Release Notes". Rybkaforum.net. Archived from the original on March 5, 2012. Retrieved March 27, 2014.
"CCRL 40/40 – Pure list". July 3, 2010. Archived from the original on February 17, 2012. Retrieved July 12, 2010.
"CEGT 40/20". Chess Engines Grand Tournament. July 11, 2010. Archived from the original on March 8, 2011. Retrieved July 12, 2010.
IPON Archived June 12, 2011, at the Wayback Machine; Ponder ON Rating list
Doggers, Peter. "Rybka disqualified and banned from World Computer Chess Championships". Chess Vibes. Archived from the original on March 30, 2014. Retrieved June 29, 2011.
Schröder, Ed. "Rybka controversy - FIDE complaint and verdict". Archived from the original on May 18, 2015.
"Vasik Rajlich". Superchessengine.com. December 20, 2005. Archived from the original on March 5, 2011. Retrieved January 2, 2011.
rybka source code Archived September 16, 2009, at the Wayback Machine. Rybkaforum.net. Retrieved on October 12, 2013.
Rybka Chess Community Forum July 2007 Archived September 16, 2009, at the Wayback Machine. rybkaforum.net
Rybka Chess Community Forum July 2007 Archived September 16, 2009, at the Wayback Machine. rybkaforum.net
Rybka @ Amsterdam 15th WCCC Archived September 16, 2009, at the Wayback Machine. Rybkaforum.net. Retrieved on October 12, 2013.
"26th Dutch Open Computer Chess Championship 2006". old.csvn.nl. Archived from the original on May 12, 2021. Retrieved February 13, 2019.
CCT11 Final Scoreboard. cctchess.com
Rybka vs Dzindzichashvili – information center Archived April 13, 2023, at the Wayback Machine. Rybkaforum.net. Retrieved on October 12, 2013.
PGNs of game 3 and 4 with Rybka evaluation, Zappa won both Archived December 16, 2008, at the Wayback Machine. Rybkaforum.net. Retrieved on October 12, 2013.
"A 'Little Fish' (Rybka) in Corporate Waters". chessvine.com. July 19, 2008
Rybka Aquarium: Interview with the Developers. chessok.com. July 23, 2008
Rybka 4 update Archived June 10, 2010, at the Wayback Machine. Rybkaforum.net. Retrieved on October 12, 2013.
"Strelka = Rybka 1.0". Rybkaforum.net. 2007. Archived from the original on September 16, 2009. Retrieved October 12, 2013.
"Osipovs arguments about Strelka". Rybkaforum.net. 2008. Archived from the original on September 16, 2009. Retrieved October 12, 2013.
"News-Overview". playwitharena.com. Archived from the original on February 18, 2009.
"IPPOLIT – home". Ippolit.wikispaces.com. December 26, 2010. Archived from the original on November 12, 2011. Retrieved January 2, 2011.
FireBird. chesslogik.com
Computer-Chess Club Charter – Please Read Before Posting. talkchess.com (March 6, 2006)
"ChessVibes News". Chessvibes.com. Archived from the original on May 28, 2010. Retrieved January 2, 2011.
Evaluation Archived August 11, 2011, at the Wayback Machine. Webspace.utexas.edu. Retrieved on October 12, 2013.
Attack of the clones Archived August 15, 2011, at the Wayback Machine. ChessVibes. Retrieved on October 12, 2013.
Levy, David. The ICGA Clone and Derivative Investigation Panel. ticc.uvt.nl
Programmers write open letter about Rybka-Fruit issue Archived July 6, 2011, at the Wayback Machine. ChessVibes. Retrieved on October 12, 2013.
ICGA Investigation Documents Archived March 3, 2016, at the Wayback Machine. None. Retrieved on October 12, 2013.
Rybka disqualified and banned from World Computer Chess Championships Archived March 30, 2014, at the Wayback Machine. Chess Vibes. Retrieved on October 12, 2013.
Tech World: World's best chess program loses titles in plagiarism row Archived October 14, 2013, at the Wayback Machine. News.techworld.com. Retrieved on October 12, 2013.
FIDE: Complaint against ICGA Archived March 4, 2016, at the Wayback Machine (2012)

wikispaces.com (Global: 7,429^th place; English: 7,626^th place)

ippolit.wikispaces.com

"IPPOLIT – home". Ippolit.wikispaces.com. December 26, 2010. Archived from the original on November 12, 2011. Retrieved January 2, 2011.

chessprogramming.wikispaces.com

ICT 2012

youtube.com (Global: 9^th place; English: 13^th place)

"Another Conversation with Vasik Rajlich" By Nelson Hernandez (on Rybka chess). Youtube.com (July 12, 2011). Retrieved on October 12, 2013.

Rybka (English Wikipedia)

110mb.com (Global: low place; English: low place)

iggor.110mb.com

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ssdf.bosjo.net

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chessgames.com (Global: 2,164th place; English: 1,605th place)

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computerchess.org.uk (Global: low place; English: low place)

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csvn.nl

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doi.org (Global: 2nd place; English: 2nd place)

extremetech.com (Global: 4,667th place; English: 3,322nd place)

fide.com (Global: 997th place; English: 861st place)

ethics.fide.com

free.fr (Global: 321st place; English: 724th place)

americanfoot.free.fr

harveywilliamson.com (Global: low place; English: low place)

hurriyetdailynews.com (Global: 1,645th place; English: 1,289th place)

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inwoba.de (Global: low place; English: low place)

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rybkachess.com (Global: low place; English: low place)

rybkaforum.net (Global: low place; English: low place)

stmintz.com (Global: low place; English: low place)

superchessengine.com (Global: low place; English: low place)

talkchess.com (Global: low place; English: low place)

techworld.com (Global: low place; English: low place)

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top-5000.nl (Global: low place; English: low place)

univ-lille3.fr (Global: low place; English: low place)

grappa.univ-lille3.fr

utexas.edu (Global: 916th place; English: 706th place)

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vrichey.de (Global: low place; English: low place)

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wbec-ridderkerk.nl (Global: low place; English: low place)

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wikispaces.com (Global: 7,429th place; English: 7,626th place)

ippolit.wikispaces.com

chessprogramming.wikispaces.com

youtube.com (Global: 9th place; English: 13th place)

chessbase.com (Global: 1,818^th place; English: 1,271^st place)

chessgames.com (Global: 2,164^th place; English: 1,605^th place)

doi.org (Global: 2^nd place; English: 2^nd place)

extremetech.com (Global: 4,667^th place; English: 3,322^nd place)

fide.com (Global: 997^th place; English: 861^st place)

free.fr (Global: 321^st place; English: 724^th place)

hurriyetdailynews.com (Global: 1,645^th place; English: 1,289^th place)

utexas.edu (Global: 916^th place; English: 706^th place)

washingtontimes.com (Global: 1,029^th place; English: 657^th place)

web.archive.org (Global: 1^st place; English: 1^st place)

wikispaces.com (Global: 7,429^th place; English: 7,626^th place)

youtube.com (Global: 9^th place; English: 13^th place)