Fischer used to speak Russian to the Russian GMs in casual games. He said, "You're in check, grandmaster!" to Petrosian in a blitz game:)
that does not mean that he really spoke Russian. It could also mean that he learned some phrases. I don't know whether he spoke Russian or not.
He speaks fluent russian. Hes from russia...
I've been told I'm not smart enough to play chess. Can a person really not be smart enough to play?
Playing chess doesn't require smart brain. Look at the America's Greatest World Chess Master Bobby Fischer. Do you know his story?
Yes, i know his story, he was a genius and had an iq of 180.