I don't think chess has any correlation with IQ
If it's so, how come Bill Gates' elo not similar or not not too far from Bobby Fischer's?
Bill Gates' IQ is often estimated to be around 160. Source: https://vocal.media/history/what-is-bill-gates-s-iq
Not really :/ chess is a problem solving game but it is different from the ones on iq tests two different variables which means two different performance ratings