...and the ability to play chess well has nothing to do with your intelligence.
Does anybody else's intelligence fluctuate?

Grandmasters say that on any day, one's playing strengh can fluxuate 200 points either way. There is a forum post about this; How to play a player rated higher than you are. So if you are rated say 1600 and you are paired with someone 2000, perhaps they will play below on that day at 1800 and perhaps you will play above at 1800, so essentially you will be playing about the same level, so you have a fighting chance! Good to know.
I agree.

so if I beat someone fide rated 2495 twice on a good day that means I was 2200. Well maybe I am 2200. Do you see the problem with ratings. You all sound like a gm cant be beat. And whatever a gm says is somehow prosaic. What a bunch of nonsense. I never heard of such crap! Your really just a bunch of insecure A*holes about the ratings like they mean so much.

I guess whether or not chess ability implies intelligence depends on where you are most intelligent. In my case, my logical intelligence far outweighs any other intelligence I may have; so if I want to know how smart I am, a simple test of logic will do. Chess is logical, isn't it?

No, my flatulence is consistently pretty dumb.
We all have good and bad chess days, weeks, or in some (my) cases, years... and years...

One's fluctuation in chess results does not imply a relationship change (positive or negative) to one's intelligence. It is however correct to suggest that chess game ability is a function of a multitute of factors including intelligence, but also factors such as health, distractions, focus etc.
One's intelligence (ability to learn etc.) is more of a "static" position that changes slowly over time, with a number of factors which may be the cause, such as heridity, culture, socio-economic status, environment etc.
...so one's actual day to day performance at chess (or any other game for that matter), may just be a reflection of fatigue, stress, focus etc.

I once went to an OTB tournament.
In the first round I beat an FM rated 2300+.
Second round, drew with a 2000.
Third round, lost to a 1700 (but she WAS cute).
You don't want to know what happened on the second day of the tournament.
Yes, intelligence (like chess skills) can fluctuate.
Any further (preferably deductive) evidence that intelligence fluctuates?

I once went to an OTB tournament.
In the first round I beat an FM rated 2300+.
Second round, drew with a 2000.
Third round, lost to a 1700 (but she WAS cute).
You don't want to know what happened on the second day of the tournament.
Yes, intelligence (like chess skills) can fluctuate.
Any further (preferably deductive) evidence that intelligence fluctuates?
Ya I'm way past borderline, does that help. Would you like me to deduce further?
??

Emotional, psychological factors??????
What are you guys talking about????? Those are de minimis.
Now being drunk or hung over do seem to make a real difference . . . . .

I don't know for sure, but am willing to go along with the psyhological factor (mindset) being an important part of turning a winning streak into a losing ditto.
Less care is eventually taken and perhaps on some occasions a player may become impatient and as a result of this will make aggressive decisions before - for instance - being completely developed.
Internet forum posts on the other hand, are pretty much always regressive, aren't they? ;)
Grandmasters say that on any day, one's playing strengh can fluxuate 200 points either way. There is a forum post about this; How to play a player rated higher than you are. So if you are rated say 1600 and you are paired with someone 2000, perhaps they will play below on that day at 1800 and perhaps you will play above at 1800, so essentially you will be playing about the same level, so you have a fighting chance! Good to know.