What do you think GM Hikaru IQ is?

Just under 200

Source?

I love how people just throw around random numbers that are also completely unreasonable.

It wasn’t a valid test. He was playing around with an online test while streaming.

It is a fallacy to think GMs have high IQs. The have a high intelligence when it comes to chess, but that is a specific intelligence related to that endeavor, same goes for any professional endeavor... example Boxing. Mohamed Ali was considered a genius when it came to boxing... he had a normal IQ.

That said Chess... is an thinking man's game, it attracts intellectuals, so many including GM's are professionals outside the chess club... Engineers, scientist, doctors, professors... etc

All these numbers are just made up, either by you or some other dude that you are quoting. This is just complete nonsense.

Kasparov actually took a test.

135

Obviously very bright. Near genius.

Der Spiegel gave him the test. Look it up on the web. You may have trouble finding the article, but you’ll find plenty of reputable people who reference it.

You won’t find anyone reputable passing on the 180 nonsense, which is grounded in asserting an assumption as evidence. To wit, GMs must be very bright to be so good at chess, so we can derive an IQ from chess rating. Anyone over 2800 must therefore be above 180 IQ.

The Der Spiegel article is online.

https://www.spiegel.de/politik/genieblitze-und-blackouts-a-1a1cbaba-0002-0001-0000-000013526693?cissue

Your post above (#870) suggests that you have a hard time distinguishing a reliable source from someone throwing out assumptions.

Kasparov is almost the only prominent chess player who took an accurate IQ test. Your list is in no way credible as it is not based on testing, but rather speculation by the uninformed. Actually, Kasparov took two tests, getting scores of 123 and 135. They are different tests with different scales. Read the article that I linked above.

Der Spiegel is a well-regarded news magazine and they sought the help of psychology professionals.

Some of the people you cited died before IQ tests were created. 
170 is statistically about 1 in 600,000... there weren't even close to that many people playing chess competitively back in Steinitz day, and there's not a 1:1 correlation between IQ and chess performance anyway... it's an absurd statistic.

1 in 1 billion people score 190 ... you've estimated that 4 people could be 190. So you've found literally 4 of the 7 smartest people on earth with this chart here.

You also speculated that Magnus may be 200... 1 in 76 billion, i.e. the smartest person who has ever lived in human history or will live for another... few thousand years at least.

Very stupid chart.

The range is wrong. And it wouldn't make a difference if it were merely 188, 1 in half a billion, it's still stupid. And how did you come up with the range? It's just throwing a dart at a dart board, these people didn't take IQ tests. Infact the only evidence presented shows Kasparov has an IQ of 135, i.e. 1-in-a-billion IQ is not what led him to succeed at chess. Kasparov can go toe-to-toe with Magnus, so why would you blindly assume Magnus is 1 in a billion while Kasparov is about 1 in 100? Very stupid

Again, there is a correlation between chess ability and IQ, but it does not even approach a 1:1 correlation.

A "very reliable source"? What source? ChatGPT?

ChatGPT is better than that.

If Bobby Fischer was an extremely intelligent genius (rather than just a great cess master) how could he be swindled so thoroughly for so long by an obvious con man like Herbert W Armstrong?

Most geniuses are a little bit odd. They think differently. They probably have mental disorders, or at least what we would call mental disorders. Things like anxiety or being anti-social.

So it wouldn't be surprising at all if a genius was able to be conned. A genius that might be really smart might also be lacking in common sense.

He was in the range of 190-205.

from my mentor