Space Dogs is a present from Krushchev to Caroline Kennedy, a puppy named Pushok. He finds the other Kennedy pets and tells them his story. Three years earlier, in Moscow 1960, a strange man showed up, who was catching street dogs and taking them away. Once he tried to catch a dog named Strelka, but she ran away with her friend, the rat Venya. Then, Strelka went to go dig for bones and Venya went to a pay telephone to get some money. Meanwhile, while Strelka was running from the strange man, at a local circus there was a bad situation at
Strelka (chess engine) Fruit, not Rybka, and that any similarities was either because Rybka also was based on Fruit, or because he had tuned the evaluation function to be as close to Rybka as possible. With the release of Strelka 2.0 beta, source code was included. Rajlich stated that the source made it "obvious" that Strelka 2.0 beta was indeed a Rybka 1.0 beta clone, although not without some improvements in certain areas. On the basis of this, he claimed the source as his own and intended to re-release it under his own name, although he later decided not to do so. He