Vasik Rajlich

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Vasik Rajlich

Vasik Rajlich (born 1971 in Cleveland, Ohio) is an International Master in chess and the author of Rybka,[1] one of the strongest chess playing programs in the world.[2][3][4][5][6] Rajlich is a dual Czechoslovakian-American citizen by birth; he was born in the United States of America to Czech parents, at that time graduate students, but grew up in Prague. He later spent years in the United States as a student, graduating from MIT.[7]

He married Iweta (née Radziewicz) on 19 August 2006. Iweta, who is also an International Master in chess,[1] helps him with the development of Rybka as its tester.[8] In April 2012, the couple was living in Budapest, Hungary and had one child, a son.[8][9]

In April 2012, Rajlich participated in an April Fools Joke that claimed that he had proven to a 99.99999999% certainty using Rybka that the King's Gambit is at best a draw for white.[9]

Rajlich's handle on the Internet Chess Club is "vrajlich".[10]

WCCC disqualification and banning[edit]

On 28 June 2011, the International Computer Games Association (ICGA) determined that Rajlich had plagiarized two other chess software programs: Crafty and Fruit.[11] 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.[12] Vasik Rajlich is banned for life from competing in the WCCC or any other event organized by or sanctioned by the ICGA.[13] Rajlich had already responded to these charges with an e-mail to David Levy, president of the ICGA, in which he stated:


  1. ^ a b Ross, Phillip E. (February 2007). "Vasik Rajlich: Game Boy". IEEE Spectrum. 
  2. ^ "CCRL 40/40 – Pure list". 2008-05-23. Retrieved 2008-05-26. 
  3. ^ "CEGT 40/20". Chess Engines Grand Tournament. 2008-05-25. Retrieved 2008-05-26. 
  4. ^ "Computerschach und Spiele – Eternal Rating". Computerschach und Spiele. 2007-03-18. Retrieved 2008-05-21. 
  5. ^ "The SSDF Rating List". Swedish Chess Computer Association. 2007-11-03. Retrieved 2008-04-22. 
  6. ^ "Bayesian Elo Ratinglist WBEC Ridderkerk after edition 14". Retrieved 2008-05-20. 
  7. ^ "Engineer Shocks Chess World". 2007-06-21. 
  8. ^ a b "Rybka team". Rybka. Retrieved 2009-02-23. 
  9. ^ a b Frederic Friedel (April 2, 2012). "Rajlich: Busting the King's Gambit, this time for sure". ChessBase News. Retrieved 2012-04-02. 
  10. ^ "vrajlich". Internet Chess Club. Retrieved 3 March 2011. 
  11. ^ ICGA Investigation Documents
  12. ^ Washington Times: Computer chess champ stripped of its four titles
  13. ^ Tech World: World's best chess program loses titles in plagiarism row
  14. ^ "Rybka disqualified and banned from World Computer Chess Championships". Retrieved 4 July 2011. 

External links[edit]