Halfway through the tournament, the scrappy underdogs of Team USA had two gold medals. >> But the Russian march to first place continued. >> We are this great rival for everybody.>> Peter Zukov is a Russian businessman and the founder of the Russian Chess Boxing Federation. >> He told us chess and boxing are hardwired into Russia's history. In Soviet old school Russian boxing gyms, they would play chess after boxing training.They would just do it to develop certain qualities in their fighters. >> They play ...