Around 2011, Rybka was one of the top-rated engines on chess engine rating lists and won many computer chess tournaments.Īfter Rybka won four consecutive World Computer Chess Championships from 2007 to 2010, it was stripped of these titles after the International Computer Games Association concluded in June 2011 that Rybka was plagiarized from both the Crafty and the Fruit chess engines and so failed to meet their originality requirements. Rybka is a computer chess engine designed by International Master Vasik Rajlich.
