Vasik Rajlich

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[ Vasik Rajlich [1] Vasik G. Rajlich, (born 1971 in Cleveland, Ohio)

a Czech-American [2] computer scientist and MIT graduate [3], where his thesis advisor was McAllester in 1993 [4]. Vasik is International Master in chess and primary author of Fritz 15 [5] [6] and Fritz 16, and before, Rybka [7], the former world strongest chess program, which arose that strong end of 2005 [8] [9]. Vasik is married with Iweta Rajlich, a Polish chess International Master and Woman Grandmaster [10] and main Rybka tester [11].

Vasik Rajlich’s interpretation of nodes and depth [12] and the Strelka controversy [13] [14] [15] [16] raised suspicions about the initial origin of Rybka 1.0 [17] [18], but Vasik Rajlich categorically denied Rybka 1.0 was based on Fruit [19] [20], as initially confirmed by Chrilly Donninger in 2005 [21] after early rumours [22] and questions [23] arose, but despite confusing Fruit using MTD(f), Donninger claimed Rybka was basically Fruit in 2007 [24]. On January 19, 2011 ICGA president David Levy broached on 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’s analysis [25] a few days before Levy wrote his article [26]. In June 2011, the ICGA has disqualified and banned Rybka and its programmer Vasik Rajlich from previous and future World Computer Chess Championships.

See also#

• Claims that Strelka is Rybka
• ICGA Investigations
• Rybka Controversy

Forum Posts#

2004 …#

• Re: Shredder 8 secret: search depth? by Vasik Rajlich, CCC, March 23, 2004 » Depth, Shredder, Junior, Fritz
• Rybka 1.0 beta release - need testers by Vasik Rajlich, CCC, November 30, 2005
• Rybka 1.0 Announcement by Vasik Rajlich, CCC, December 05, 2005
• Rybka 3 Release Notes by Vasik Rajlich, Rybka Forum, August 4, 2008

2010 …#

• Vasik’s Contribution by Martin Wyngaarden, CCC, December 04, 2010
• Apology to Vas by Rebel, Rybka Forum, August 17, 2011
• A Big Thanks and a Small Update by Vasik Rajlich, Rybka Forum, January 08, 2012

2020 …#

• Time to rethink what Vasik Rajlich has done? by Madeleine Birchfield, CCC, July 03, 2021 » Rybka Controversy

External Links#

• Vasik Rajlich from Wikipedia
• Vasik Rajlich’s ICGA Tournaments
• The chess games of Vasik G Rajlich from chessgames.com
• Rajlich Family
• Interview with Vasik Rajlich by Christopher Conkie, Michael Diosi, Frank Quisinsky & Alexander Schmidt, December 20, 2005, hosted by Ed Schröder ( Wayback Machine)
• Vasik Rajlich: Game Boy by Philip E. Ross, IEEE Spectrum, February 01, 2007
• An Open Letter and $100,000 challenge to FIDE President Kirsan N. Ilyumzhinov by Vasik Rajlich, May 31, 2007
• Interview with IM Vasik Rajlich, author of Rybka chess program Written by content team 24 July 2007 from LatestChess.com
• Interview with Vasik Rajlich by Michael Diosi, Free chess graphical user interface (GUI) Arena for chess engines, October 2008
• Interview mit dem Rybka-Programmierer Vasik Rajlich, Glarean Magazin, October 18, 2009
• A Conversation with Vasik Rajlich - Part 1, By Nelson Hernandez, December 2009, YouTube Video

Part 2, Part 3, Part 4, Part 5, Part 6, Part 7

• “Another Conversation with Vasik Rajlich” By Nelson Hernandez (on Rybka chess), July 04, 2011, YouTube Video [28]

• Rajlich: Busting the King’s Gambit, this time for sure Interview with Vasik Rajlich by Frederic Friedel, ChessBase News, April 02, 2012 [29] [30] [31]

• Fritz 15 engine - questions and answers by Albert Silver, ChessBase News, January 04, 2016  » Fritz

References#

1. ↑ Vasik Rajlich in 2006, Photo by Iweta Rajlich, CC BY-SA 3.0, Wikimedia Commons
2. ↑ Vasik Rajlich from Wikipedia
3. ↑ Engineer Shocks Chess World from IEEE Spectrum online
4. ↑ Re: To author of Rybka by Vasik Rajlich, CCC, December 17, 2005
5. ↑ Fritz 15 - English Version, ChessBase Shop
6. ↑ Fritz 15 engine - questions and answers by Albert Silver, ChessBase News, January 04, 2016
7. ↑ Welcome to RybkaChess.com!
8. ↑ Rybka 1.0 beta release - need testers by Vasik Rajlich, CCC, November 30, 2005
9. ↑ Rybka 1.0 Announcement by Vasik Rajlich, CCC, December 05, 2005
10. ↑ Iweta Rajlich from Wikipedia
11. ↑ Rybka team
12. ↑ To Jeroen and interested minds, re. Tiger node count by Christophe Théron, CCC, August 15, 2008
13. ↑ Strelka controversy from Wikipedia
14. ↑ Strelka 2.0 by Vasik Rajlich, January 11, 2008
15. ↑ Fabien’s open letter to the community by Tord Romstad, CCC, January 23, 2011
16. ↑ Fabien’s open letter to the community by Tord Romstad, OpenChess Forum, January 23, 2011
17. ↑ Rybka 1.0 vs. Strelka by Zach Wegner, CCC, August 19, 2008
18. ↑ Questions for Vas by Zach Wegner, CCC, August 25, 2008
19. ↑ Is Rybka a derivative of Fruit?, Rybka Forum, July 14, 2007
20. ↑ question to vas on similarity of rybka 1.0 to fruit, Rybka Forum, August 25, 2008
21. ↑ Rybka uses PVS and not MTD(f). Its no Fruit-Clone by Chrilly Donninger, CCC, December 12, 2005
22. ↑ Is Rybka a fruit clone? by Ziad Haddad, CCC, December 06, 2005
23. ↑ Rybka - How much Fruit is inside? by Daniel Mehrmann, CCC, December 11, 2005
24. ↑ Re: I know something of Dr.Donninger by Harvey Williamson, Hiarcs Forum, October 16, 2007, quoted with the kind permission of Chrilly and Enir
25. ↑ Rybka/Fruit: evaluation by Zach Wegner, 2010
26. ↑ Attack of the clones | ChessVibes by David Levy, 19 February, 2011
27. ↑ Interview with Vasik Rajlich by Christopher Conkie, Michael Diosi, Frank Quisinsky & Alexander Schmidt, December 20, 2005, hosted by Ed Schröder ( Wayback Machine)
28. ↑ Vasik Rajlich responds to his accusers by Nelson Hernandez, Rybka Forum, July 12, 2011
29. ↑ Luke skywalker has done it again by Daniel Shawul, CCC, April 02, 2012
30. ↑ The ChessBase April Fools revisited, ChessBase News, April 10, 2012
31. ↑ April Fools’ Day from Wikipedia

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