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Created page with "'''Home * People * Vasik Rajlich''' FILE:Vasik Rajlich.jpg|border|right|thumb|Vasik Rajlich <ref>Vasik Rajlich in 2006, [https://commons.wikimedia.org/wik..."
'''[[Main Page|Home]] * [[People]] * Vasik Rajlich'''
[[FILE:Vasik Rajlich.jpg|border|right|thumb|Vasik Rajlich <ref>Vasik Rajlich in 2006, [https://commons.wikimedia.org/wiki/File:Vasik_Rajlich.jpg Photo] by [[Iweta Rajlich]], [https://creativecommons.org/licenses/by-sa/3.0/deed.en CC BY-SA 3.0], [https://en.wikipedia.org/wiki/Wikimedia_Commons Wikimedia Commons]</ref> ]]
'''Vasik G. Rajlich''', (born 1971 in Cleveland, Ohio)<br/>
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. 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.
=Interview=
Quotes from an ''uciengines.de'' Interview with Vasik Rajlich, December 20, 2005 <ref>[http://www.top-5000.nl/int/rybka.htm Interview with Vasik Rajlich] by [[Christopher Conkie]], [[Michael Diosi]], [[Frank Quisinsky]] & [[Alexander Schmidt]], December 20, 2005, hosted by [[Ed Schroder|Ed Schröder]]</ref>, ''a new age in Computerchess?'' Two questions by [[Alexander Schmidt]]:
20. '''''Alexander Schmidt''''':
The increase in playing strength of the latest chess engines is unbelieveable. We have since some time with Fruit 2.1 by Fabien Letouzey a very strong open source engine. Do you see a relation between the published sources of such a strong engine and the increase of strength in computer chess in general? How much influence do the ideas of Fruit have on the future of computerchess?
'''''Vasik Rajlich''''':
Yes, the publication of Fruit 2.1 was huge. Look at how many engines took a massive jump in its wake: Rybka, Hiarcs, Fritz, Zappa, Spike, List, and so on. I went through the Fruit 2.1 source code forwards and backwards and took many things.
It is a bit of a pity that Rybka won't make the same contribution to the computer chess community, but at the moment I must also think about protecting my secrets. It's the eternal struggle for a computer chess programmer.
21. '''''Alexander Schmidt''''':
We had our first contact when I had questions about a similarity to Fruit in the search, others found similarities in the evaluation. Some people where a little bit suspicious that Rybka could be a clone of the open source engine. In the meantime it is clear that Rybka is no clone but you used ideas of Fruit (I guess all other serious engine programmers had a look at Fruit too). How strong would Rybka actually be if the Fruit code would have never been published?
'''''Vasik Rajlich''''':
It's a good question. I don't want to get too specific about which ideas from Fruit I think are really useful, but they fall into two categories:
1) Very specific tricks, mostly related to search.
2) Philosophy of the engine (and in particular of the search).
Fruit could really hardly be more useful along both of these dimensions. Fabien is a very good engineer, and also has a very clear and simple conception of how his search should behave.
Anyway, if I really had to give a number - my wild guess is that Rybka would be 20 rating points weaker had Fruit not appeared.
=See also=
* [[Claims that Strelka is Rybka]]
* [[ICGA Investigations]]
* [[Rybka Controversy]]
=Forum Posts=
* [https://www.stmintz.com/ccc/index.php?id=356131 Re: Shredder 8 secret: search depth?] by [[Vasik Rajlich]], [[CCC]], March 23, 2004 » [[Depth]], [[Shredder]], [[Junior]], [[Fritz]]
* [https://www.stmintz.com/ccc/index.php?id=465686 Rybka 1.0 beta release - need testers] by Vasik Rajlich, [[CCC]], November 30, 2005
* [https://www.stmintz.com/ccc/index.php?id=466792 Rybka 1.0 Announcement] by Vasik Rajlich, [[CCC]], December 05, 2005
* [http://rybkaforum.net/cgi-bin/rybkaforum/topic_show.pl?tid=5547 Rybka 3 Release Notes] by Vasik Rajlich, [[Computer Chess Forums|Rybka Forum]], August 4, 2008
* [http://www.talkchess.com/forum/viewtopic.php?topic_view=threads&p=379676&t=36941 Vasik's Contribution] by [[Martin Wyngaarden]], [[CCC]], December 04, 2010
* [http://rybkaforum.net/cgi-bin/rybkaforum/topic_show.pl?tid=22679 Apology to Vas] by [[Ed Schroder|Rebel]], [[Computer Chess Forums|Rybka Forum]], August 17, 2011
* [http://rybkaforum.net/cgi-bin/rybkaforum/topic_show.pl?tid=23957 A Big Thanks and a Small Update] by [[Vasik Rajlich]], [[Computer Chess Forums|Rybka Forum]], January 08, 2012
=External Links=
* [https://en.wikipedia.org/wiki/Vasik_Rajlich Vasik Rajlich from Wikipedia]
* [https://www.game-ai-forum.org/icga-tournaments/person.php?id=104 Vasik Rajlich's ICGA Tournaments]
* [http://www.chessgames.com/perl/chessplayer?pid=36716 The chess games of Vasik G Rajlich] from [http://www.chessgames.com/index.html chessgames.com]
* [http://www.rajlich.com/ Rajlich Family]
* [http://www.top-5000.nl/int/rybka.htm Interview with Vasik Rajlich] by [[Christopher Conkie]], [[Michael Diosi]], [[Frank Quisinsky]] & [[Alexander Schmidt]], December 20, 2005, hosted by [[Ed Schroder|Ed Schröder]]
* [http://spectrum.ieee.org/computing/software/vasik-rajlich-game-boy Vasik Rajlich: Game Boy] by [http://spectrum.ieee.org/author/ross-philip-e Philip E. Ross], [[IEEE#Spectrum|IEEE Spectrum]], February 01, 2007
* [http://www.rybkachess.com/docs/ChallengeToFIDE.htm An Open Letter and $100,000 challenge to FIDE President Kirsan N. Ilyumzhinov] by [[Vasik Rajlich]], May 31, 2007
* [http://latestchess.com/showInterview.php?id=4 Interview with IM Vasik Rajlich, author of Rybka chess program] Written by content team 24 July 2007 from [http://latestchess.com/index.php LatestChess.com]
* [http://www.playwitharena.com/?Interviews:Interview_with_Vasik_Rajlich Interview with Vasik Rajlich] by [[Michael Diosi]], [http://www.playwitharena.com/ Free chess graphical user interface (GUI) Arena for chess engines], October 2008
* [http://glareanverlag.wordpress.com/2009/10/18/interview-schachprogramm-vasik-rajlich-rybka_glarean-magazin/ Interview mit dem Rybka-Programmierer Vasik Rajlich], [http://glareanverlag.wordpress.com/ Glarean Magazin], October 18, 2009
* <span id="Conversation"></span> A Conversation with Vasik Rajlich - Part 1, By [[Nelson Hernandez]], December 2009, [https://en.wikipedia.org/wiki/YouTube YouTube] Video
: [http://www.youtube.com/watch?v=f5XXP9m4umU Part 2], [http://www.youtube.com/watch?v=8Xbs_YdSs6c Part 3], [http://www.youtube.com/watch?v=qWW0fwnYzN0 Part 4], [http://www.youtube.com/watch?v=nJlVWe7v3r4 Part 5], [http://www.youtube.com/watch?v=2TCojL6edA0 Part 6], [http://www.youtube.com/watch?v=GJ7YRwD1R48 Part 7]
: {{#evu:https://www.youtube.com/watch?v=k4aRw1ho6H8|alignment=left|valignment=top}}
* "Another Conversation with Vasik Rajlich" By [[Nelson Hernandez]] (on Rybka chess), July 04, 2011, [https://en.wikipedia.org/wiki/YouTube YouTube] Video <ref>[http://rybkaforum.net/cgi-bin/rybkaforum/topic_show.pl?tid=22402 Vasik Rajlich responds to his accusers] by [[Nelson Hernandez]], [[Computer Chess Forums|Rybka Forum]], July 12, 2011</ref>
: {{#evu:https://www.youtube.com/watch?v=cQshTNJ4pSM|alignment=left|valignment=top}}
* [http://chessbase.com/newsdetail.asp?newsid=8047 Rajlich: Busting the King's Gambit, this time for sure] Interview with [[Vasik Rajlich]] by [[Frederic Friedel]], [[ChessBase|ChessBase News]], April 02, 2012 <ref>[http://www.talkchess.com/forum/viewtopic.php?t=43129 Luke skywalker has done it again] by [[Daniel Shawul]], [[CCC]], April 02, 2012</ref> <ref>[http://www.chessbase.com/newsdetail.asp?newsid=8067 The ChessBase April Fools revisited], [[ChessBase|ChessBase News]], April 10, 2012</ref> <ref>[https://en.wikipedia.org/wiki/April_Fools%27_Day April Fools' Day from Wikipedia]</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 » [[Fritz]]
=References=
<references />
'''[[People|Up one level]]'''
[[Category:Chess Player]]
[[Category:Programmer]]
[[FILE:Vasik Rajlich.jpg|border|right|thumb|Vasik Rajlich <ref>Vasik Rajlich in 2006, [https://commons.wikimedia.org/wiki/File:Vasik_Rajlich.jpg Photo] by [[Iweta Rajlich]], [https://creativecommons.org/licenses/by-sa/3.0/deed.en CC BY-SA 3.0], [https://en.wikipedia.org/wiki/Wikimedia_Commons Wikimedia Commons]</ref> ]]
'''Vasik G. Rajlich''', (born 1971 in Cleveland, Ohio)<br/>
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. 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.
=Interview=
Quotes from an ''uciengines.de'' Interview with Vasik Rajlich, December 20, 2005 <ref>[http://www.top-5000.nl/int/rybka.htm Interview with Vasik Rajlich] by [[Christopher Conkie]], [[Michael Diosi]], [[Frank Quisinsky]] & [[Alexander Schmidt]], December 20, 2005, hosted by [[Ed Schroder|Ed Schröder]]</ref>, ''a new age in Computerchess?'' Two questions by [[Alexander Schmidt]]:
20. '''''Alexander Schmidt''''':
The increase in playing strength of the latest chess engines is unbelieveable. We have since some time with Fruit 2.1 by Fabien Letouzey a very strong open source engine. Do you see a relation between the published sources of such a strong engine and the increase of strength in computer chess in general? How much influence do the ideas of Fruit have on the future of computerchess?
'''''Vasik Rajlich''''':
Yes, the publication of Fruit 2.1 was huge. Look at how many engines took a massive jump in its wake: Rybka, Hiarcs, Fritz, Zappa, Spike, List, and so on. I went through the Fruit 2.1 source code forwards and backwards and took many things.
It is a bit of a pity that Rybka won't make the same contribution to the computer chess community, but at the moment I must also think about protecting my secrets. It's the eternal struggle for a computer chess programmer.
21. '''''Alexander Schmidt''''':
We had our first contact when I had questions about a similarity to Fruit in the search, others found similarities in the evaluation. Some people where a little bit suspicious that Rybka could be a clone of the open source engine. In the meantime it is clear that Rybka is no clone but you used ideas of Fruit (I guess all other serious engine programmers had a look at Fruit too). How strong would Rybka actually be if the Fruit code would have never been published?
'''''Vasik Rajlich''''':
It's a good question. I don't want to get too specific about which ideas from Fruit I think are really useful, but they fall into two categories:
1) Very specific tricks, mostly related to search.
2) Philosophy of the engine (and in particular of the search).
Fruit could really hardly be more useful along both of these dimensions. Fabien is a very good engineer, and also has a very clear and simple conception of how his search should behave.
Anyway, if I really had to give a number - my wild guess is that Rybka would be 20 rating points weaker had Fruit not appeared.
=See also=
* [[Claims that Strelka is Rybka]]
* [[ICGA Investigations]]
* [[Rybka Controversy]]
=Forum Posts=
* [https://www.stmintz.com/ccc/index.php?id=356131 Re: Shredder 8 secret: search depth?] by [[Vasik Rajlich]], [[CCC]], March 23, 2004 » [[Depth]], [[Shredder]], [[Junior]], [[Fritz]]
* [https://www.stmintz.com/ccc/index.php?id=465686 Rybka 1.0 beta release - need testers] by Vasik Rajlich, [[CCC]], November 30, 2005
* [https://www.stmintz.com/ccc/index.php?id=466792 Rybka 1.0 Announcement] by Vasik Rajlich, [[CCC]], December 05, 2005
* [http://rybkaforum.net/cgi-bin/rybkaforum/topic_show.pl?tid=5547 Rybka 3 Release Notes] by Vasik Rajlich, [[Computer Chess Forums|Rybka Forum]], August 4, 2008
* [http://www.talkchess.com/forum/viewtopic.php?topic_view=threads&p=379676&t=36941 Vasik's Contribution] by [[Martin Wyngaarden]], [[CCC]], December 04, 2010
* [http://rybkaforum.net/cgi-bin/rybkaforum/topic_show.pl?tid=22679 Apology to Vas] by [[Ed Schroder|Rebel]], [[Computer Chess Forums|Rybka Forum]], August 17, 2011
* [http://rybkaforum.net/cgi-bin/rybkaforum/topic_show.pl?tid=23957 A Big Thanks and a Small Update] by [[Vasik Rajlich]], [[Computer Chess Forums|Rybka Forum]], January 08, 2012
=External Links=
* [https://en.wikipedia.org/wiki/Vasik_Rajlich Vasik Rajlich from Wikipedia]
* [https://www.game-ai-forum.org/icga-tournaments/person.php?id=104 Vasik Rajlich's ICGA Tournaments]
* [http://www.chessgames.com/perl/chessplayer?pid=36716 The chess games of Vasik G Rajlich] from [http://www.chessgames.com/index.html chessgames.com]
* [http://www.rajlich.com/ Rajlich Family]
* [http://www.top-5000.nl/int/rybka.htm Interview with Vasik Rajlich] by [[Christopher Conkie]], [[Michael Diosi]], [[Frank Quisinsky]] & [[Alexander Schmidt]], December 20, 2005, hosted by [[Ed Schroder|Ed Schröder]]
* [http://spectrum.ieee.org/computing/software/vasik-rajlich-game-boy Vasik Rajlich: Game Boy] by [http://spectrum.ieee.org/author/ross-philip-e Philip E. Ross], [[IEEE#Spectrum|IEEE Spectrum]], February 01, 2007
* [http://www.rybkachess.com/docs/ChallengeToFIDE.htm An Open Letter and $100,000 challenge to FIDE President Kirsan N. Ilyumzhinov] by [[Vasik Rajlich]], May 31, 2007
* [http://latestchess.com/showInterview.php?id=4 Interview with IM Vasik Rajlich, author of Rybka chess program] Written by content team 24 July 2007 from [http://latestchess.com/index.php LatestChess.com]
* [http://www.playwitharena.com/?Interviews:Interview_with_Vasik_Rajlich Interview with Vasik Rajlich] by [[Michael Diosi]], [http://www.playwitharena.com/ Free chess graphical user interface (GUI) Arena for chess engines], October 2008
* [http://glareanverlag.wordpress.com/2009/10/18/interview-schachprogramm-vasik-rajlich-rybka_glarean-magazin/ Interview mit dem Rybka-Programmierer Vasik Rajlich], [http://glareanverlag.wordpress.com/ Glarean Magazin], October 18, 2009
* <span id="Conversation"></span> A Conversation with Vasik Rajlich - Part 1, By [[Nelson Hernandez]], December 2009, [https://en.wikipedia.org/wiki/YouTube YouTube] Video
: [http://www.youtube.com/watch?v=f5XXP9m4umU Part 2], [http://www.youtube.com/watch?v=8Xbs_YdSs6c Part 3], [http://www.youtube.com/watch?v=qWW0fwnYzN0 Part 4], [http://www.youtube.com/watch?v=nJlVWe7v3r4 Part 5], [http://www.youtube.com/watch?v=2TCojL6edA0 Part 6], [http://www.youtube.com/watch?v=GJ7YRwD1R48 Part 7]
: {{#evu:https://www.youtube.com/watch?v=k4aRw1ho6H8|alignment=left|valignment=top}}
* "Another Conversation with Vasik Rajlich" By [[Nelson Hernandez]] (on Rybka chess), July 04, 2011, [https://en.wikipedia.org/wiki/YouTube YouTube] Video <ref>[http://rybkaforum.net/cgi-bin/rybkaforum/topic_show.pl?tid=22402 Vasik Rajlich responds to his accusers] by [[Nelson Hernandez]], [[Computer Chess Forums|Rybka Forum]], July 12, 2011</ref>
: {{#evu:https://www.youtube.com/watch?v=cQshTNJ4pSM|alignment=left|valignment=top}}
* [http://chessbase.com/newsdetail.asp?newsid=8047 Rajlich: Busting the King's Gambit, this time for sure] Interview with [[Vasik Rajlich]] by [[Frederic Friedel]], [[ChessBase|ChessBase News]], April 02, 2012 <ref>[http://www.talkchess.com/forum/viewtopic.php?t=43129 Luke skywalker has done it again] by [[Daniel Shawul]], [[CCC]], April 02, 2012</ref> <ref>[http://www.chessbase.com/newsdetail.asp?newsid=8067 The ChessBase April Fools revisited], [[ChessBase|ChessBase News]], April 10, 2012</ref> <ref>[https://en.wikipedia.org/wiki/April_Fools%27_Day April Fools' Day from Wikipedia]</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 » [[Fritz]]
=References=
<references />
'''[[People|Up one level]]'''
[[Category:Chess Player]]
[[Category:Programmer]]
