About Vasik Rajlich
Born 1971. Vasik Rajlich is a Czech chess player.
Vasik Rajlich (born 19 March 1971) is an International Master in chess and the author of Rybka, previously one of the strongest chess playing programs in the world.
Biography Rajlich was a dual Czechoslovak-American citizen by birth; he was born in Cleveland, Ohio, to Czech parents, at that time graduate students, but grew up in Prague. His father was Czech computer scientist Václav Rajlich. He later spent years in the United States as a student, graduating from Massachusetts Institute of Technology (MIT).
He married Iweta Radziewicz on 19 August 2006. Iweta, who is also an International Master in chess, In April 2012, the couple was living in Budapest, Hungary, and had one child, a son.
In April 2012, Rajlich participated in an April Fools' Day prank on ChessBase —claiming by using Rybka he had proven to a "99.99999999% certainty" that the accepted King's Gambit is a draw for White, but only after 3. Be2.
Rajlich's handle on the Internet Chess Club is "vrajlich".
WCCC disqualification and banning On 28 June 2011, the International Computer Games Association (ICGA) determined that Rajlich had plagiarized two other chess software programs: Crafty and Fruit. The ICGA sanction for Vasik Rajlich and Rybka was the disqualification from the World Computer Chess Championship (WCCC) of 2006, 2007, 2008, 2009 and 2010. Vasik Rajlich is banned for life from competing in the WCCC or any other event organized by or sanctioned by the ICGA. Rajlich had already responded to these charges with an e-mail to David Levy, president of the ICGA, in which he stated:
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Important facts
People in Vasik Rajlich's life
Named in this biography and alive at the same time
Contemporaries
People whose lives overlapped Vasik Rajlich's
Frequently asked questions
Who is Vasik Rajlich?
American-Czech chess player
When was Vasik Rajlich born?
Vasik Rajlich was born on 19 March 1971 in Cleveland.
What is Vasik Rajlich's occupation?
Vasik Rajlich is a chess player.
What nationality is Vasik Rajlich?
Vasik Rajlich is Czech.
Sources & further reading
Cite this page
APA: Biography.guide. (2026). Vasik Rajlich. https://biography.guide/vasik-rajlich/
MLA: "Vasik Rajlich." Biography.guide, https://biography.guide/vasik-rajlich/.
Chicago: "Vasik Rajlich." Biography.guide. https://biography.guide/vasik-rajlich/.
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