Absolutely not! No more than a better basketball player has a better I.Q. You have to remember...chess is a game. That's all. A game where you out-fox your opponent by moving your pieces. Practice makes perfect ! That's all there is too it.
Does being better at chess have anything to do with IQ?

Texasboy is right...just a thinking game. Don't listen to those out there that try to relate the game to some math thing. practice and you'll get better.

You can never ever ever have too many chess/I.Q. threads! Constant reassurance that one is playing a game because it's smart is certainly a must

Intelligence is incredibly important to play chess.
Intelligence is the ability to learn and understand. You need this ability to understand opening theory, learning patterns, and of course even adapt to the new situations OTB. Being able to think and apply your knowledge to a new situation on the chessboard is nothing but pure intelligence.
Then of course those who are less intelligent can try to remedy with hard work. But that's the point. It takes more work to get the same result and you have a much lower potential. Exactly same thing that happens in the gym. Some people will have to train hard and with strict diet for years to be able to let's say to squat 100kg. Others that are naturally strong will reach that in few months and eating badly.
There's a genetic lottery, and this lottery by defition is unfair.
Regardless of what political correctness tells you.

The term "intelligence" is very nebulous and can mean many things. If you mean "IQ Scores," then the research has repeatedly shown that there is no meaningful correllation between IQ and chess performance.
However, chess obviously is a game where the skills of of imagination, memory, calculation, analysis and evaluation matter a great deal. And those skills are mental skills. So in some respect there's clearly something about mental capacity that is involved. Just what it is hasn't been exactly figured out yet.

It is certainly involved. Imagine, for a moment, a person who is "challenged." Let's say he has an IQ of 60. This person will have trouble learning how to play, understanding general ideas, etc. because of his low IQ. Further, those with higher IQ often gain more chances to develop higher-order thinking skills than those who may be "challenged." However, the difference between a 120 and a 125 would probably be minimal.

"Topic: IQ/Chess blabla"
What non-chess players think: "Oh you play chess, you are so smart."
What average chess players think: "I hang my queen, but who cares people think I'm smart."
What good chess players think: .. I don't actually know, I'm not a good chess player XD

It is certainly involved. Imagine, for a moment, a person who is "challenged." Let's say he has an IQ of 60. . . .
There is no good evidence that among chess players that IQ score correlates in anyway to chess ability.

It is certainly involved. Imagine, for a moment, a person who is "challenged." Let's say he has an IQ of 60. . . .
There is no good evidence that among chess players that IQ score correlates in anyway to chess ability.
But that's because there is an enourmous difference in the time and effort that has been put into the game, and also the access to better learning resources (from the right opening books to interesting opponents).
If it was possible to adjust for all these variables you can be sure that the person with higher IQ would be better at chess.

If it was possible to adjust for all these variables you can be sure that the person with higher IQ would be better at chess.
Gee, let's see, 85 years of published research in scientific journals dating back Djakow, Petrowski & Rudik's groundbreaking 1927 paper or your opinion, which oh which should I consider as having more worth? Such a choice. But since you tell me "I can be sure," then I guess all those psychologists, neurologists and cognative researchers are just full of it.
Does being better at chess have anything to do with Iq???
For reading this, this is a chess game (im white)