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New CT-ART 5.0 combines three excellent courses guiding you from beginner to advanced level. » Rybka 4 UCI Released!
Rybka 4 UCI Released! 24 May 2010
Rybka 4 UCI for downloadDeep Rybka 4 UCI for downloadRybka 4 UCI on CDDeep Rybka 4 UCI on CD Rybka 4 Aquarium and Opening Book by Jir Dufek will be available in a few hours. Stay tuned! Please note, that (Deep) Rybka 4 Aquarium or Chess Assistant 11 already include Rybka 4 UCI / Deep Rybka 4 UCI without any additional payments along with a bonus program of Openings Encyclopedia 2010. There’s also a 30% discount package of Rybka 4 Aquarium + Chess Assistant available for order. Rybka 4 UCI / Deep Rybka 4 UCI can be used in all modern chess programs such as Aquarium, Chess Assistant, Fritz, Shredder, Chessbase, Arena etc.

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