Many people misunderstand what "correlation between" means. It doesn't mean "causes" or even "is always found to be in conjunction with". It's a randomly based, statistical probability.
The general-English definition (earliest known usage 1561) "implying intimate or necessary connection" seems to be what most here are using. The statistical sciences definition you use is not inconsistent with the proposition that great chess achievement need not pair with high IQ; so there is no reason to think that someone with an IQ of 102 cannot be one of the world's best chess players.
Well, I'll tell you what. There's certainly a strong correlation between IQ and those who think that IQ correlates positively with chess ability.
Yet many people of average or lower IQ think chess is an activity reserved for "brainiacs" and is beyond their ability, and there seems to be quite a few chessplayers here who don't believe that. Does this mean that the opinion you mention correlates with a lower IQ than you seem to surmise?
Yes but then, they (people of average or lower IQ who think chess is an activity reserved for "brainiacs" and is beyond their ability) DON'T play chess, do they. This referendum is pretty much confined to those who DO play chess.
I'm afraid you don't seem very good at putting arguments together. You must be able to do better than that. You once told me that your IQ was measured at 168.