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Welcome to RybkaChess.com!
Rybka is a UCI chess engine programmed by International Master Vasik Rajlich
Jeroen's X-Mas surprise
Jeroen Noomen created six new testsuites based on world championship matches such as Botvinnik-Smyslov 1957, Spasski-Fischer 1972 and Kasparov-Karpov 1990.
Noomen Worldchampionship Matches Testsuites