I actually knew(online) a girl who had an IQ of 165 and was atrocious at chess. Now that's puzzling.
Bobby Fischer had an IQ of 187.
You cannot just throw out a number without knowing the background of it. His IQ was in the range 180-187 at the 1958 Stanford-Binet test which is equivalent to the range 148-155 for todays Stanford-Binet test.
Yes you can. This is chess.com! Please respect our ways.
There are many things we won't know until we try. This is probably one of them.