.. A little, 'off-topic' o: {'mah-jong'? .. of which I know, almost nothing about}.
Is chess for smart people?

As does the entire internet.
Liar!
That's the same as the number of squares on a chessboard. Are you some kind of... chess... guy?
No. I am a person, not some kind of chess.
This is all so confusing.

IQ does not define your intelligent by the way. It is just a measurement and a theory.
And theory is always tentative, open to refutation
That is what people with low IQ say to feel better about themselves.

I have a IQ of 152 from my school's IQ test.
I took an internut IQ and mine got to 166. I. AM. GENIUS.
Only proves the point is that chess is for those who work hard rather than are smart.

Life is choice and results. You are smart if you make smart choices.
Life is suffering. You can be at the top of the world, then get hit by a drunk driver 2 seconds later.
That doesn't sound like suffering. That sounds like death. I think not living for a lifetime is worse than death.
Some would say otherwise. Living a long Life also means that you have to "suffer" longer in this World. Some just want to die Young and live fast
Some believe this yes.
What is smart is a better question. >>>
It really is as simple as that, except that cognitive ability isn't fixed in an individual but varies according to circumstances and context.
I think we can both agree that there are vastly more intelligent people out there than us. They might be solving the mysteries of quantum physics, or decoding the human genome. However, they might be absolutely rubbish at chess. Now, who's smarter?
That's where the problem is, "Everyone is a genius. But if you judge a fish by its ability to climb a tree, it will live its whole life believing that it is stupid"
I would argue that intelligence is the ability to learn quickly/process information quickly, as you said, but thats not the topic of this thread.
So my belief is that chess is for everyone.

Clearly if we define intelligence properly and not just as a synonym of academia or knowledge then yes, chess can test and possibly even develop intelligence since you have to ask intelligent questions in chess to come up with candidate moves to solve tactical and positional problems inherent in your particular position. Chess won't make you know more about politics, but it does involve logic, step by step thinking to test your premise (candidate move) with a tiny thesis, antithesis, and synthesis (chosen move.) If chess was memory and visualisation alone, then opening knowledge with a couple of years per game to go through each line would be the ways masters win games!

but yes of course Chess is for everyone. I guess that's self evident so I've interpreted the question to mean: "Does chess require and develop intelligence?..." apologies if I've missed the point of this thread entirely... And yes basically intelligence requires the ability to understand why something works, and to prove why your move is good, or why a formula in maths works, or why your scientific discovery is apt and not just a random correlation. Intelligence is not just cold memory, although memory is also very important in life clearly.

I'm not impressed by someones chess rating until I've heard about their experience.
For example, there could be person A, rated 1700 FIDE and person B, rated 2200 FIDE.
Does this mean person B is smarter? Not in my opinion.
Person B could have just started at a young age of about 6 or 7 and had coaching by some good coaches. Person B could have also focused less on their education and spent too much time on chess.
Person A could have only started at 13, spent more time studying for their future career and had no coaches.

I'm not impressed by someones chess rating until I've heard about their experience.
For example, there could be person A, rated 1700 FIDE and person B, rated 2200 FIDE.
Does this mean person B is smarter? Not in my opinion.
Person B could have just started at a young age of about 6 or 7 and had coaching by some good coaches. Person B could have also focused less on their education and spent too much time on chess.
Person A could have only started at 13, spent more time studying for their future career and had no coaches.
Yes true there are other things in life worth doing other than chess, and many different types of intelligence. No one would argue with that. And "knowing stuff" in it'self is not intelligence. Proper knowledge requires intelligence but it's not the same thing. Chess will require logic, similar to the type of intelligence for maths. However yes chess ability alone is not a completely rounded indicator of overall intelligence or success, rf effort applied in life, but the 2200 rated player will obviously make more intelligent analysis of his games move per move. You don't just mindlessly memorise chess books to get better at chess!
Having 'chess' smarts ; Will sometimes lead one, to realize, that providing 'leads' that, may or may Not, be related to 'chess'; Is both, the altruistic, & prudent, thing to do ! ..{a 'how to' publish, your own book, 'heads up', link, below}.
https://www.entrepreneur.com/article/302711
I will answer your question with a question.
In these forums how many really clever people have you met?
Actually, I have met a LOT of clever people. You, for example, are VERY intelligent. I would say you have a very high IQ, DeirdreSkye. We should play a few games
DeirdreSkye's IQ is higher than Goku's power level.
.. There are 2 commonalities, with above- average, chess players, in the following link, re. 'day traders' ..{selling & buying 'stocks' on your 'pc'}.. Ie. Ya get to 'work' from home ; And, with 'knowledge'; Opens, the pathway, to succes$ !
http://20smoney.com/2017/10/16/learn-veteran-day-traders/
As someone else said, chess is for people who like chess. But to become very good at chess, say an IM or GM, probably requires both dedication and a great cognitive prowess.