From that point of view, you should really consider them to be as knowledgeable about these things as high school dropouts. It was hilarious following the whole cheating thing and seeing them try to interpret these statistical results and coming to really stupid conclusions.
You could say it’s difficult to see them this way due to the cultural and historical perspectives on chess but this is the reality of top grandmasters at this time.
Source?
[0]: https://www.reddit.com/r/chess/comments/1uk3wa3/world_no_2s_...
Getting better at chess, the Rubik's Cube, etc. is a skill. The more you practice and the more passionate you are, the better you get at it. This is just like learning to play the piano or learning to swim. There is natural aptitude as well but its not as simple as being super smart and being able to strategize well using intelligence. That's just the narrative that seems to make sense. Being good at chess isn't evidence that someone is smart in general.
The first study of it I found (https://www.sciencedirect.com/science/article/abs/pii/S01602...) notes that, while there is some correlation, "Full-scale IQ explained < 1% of the variance in chess skill."
But to become grandmaster you have to dedicate a lot of your life to chess. It's not that these people couldn't know general knowledge or do higher math, they are simply not exposed to it. They are not smart in the sense of a universal genius, because that would require immersing yourself in all the things - the opposite of what a chess grandmaster does
> The ability to play chess well is the sign of a wasted life.
The nature of the questions and why they are expected to know the answers matters a lot here.