Yesterday I spent a couple of hours in the pool at the building where I live, where, as it happens, on his last visit the pool man put in lotsa extra chlorine. As a result, my silver ring is now badly tarnished, and even one
of my 14k gold rings started to discolor.
Now, at the moment I’m at work, and I left my Tarn-X and
Williams Silver Cream in my other suit at home. Is there
anything I could find around the office that would get
the tarnish off? Soda? Coffee? Chocolate candy?
Hrm.
I have to say that I’ve never heard of AuCl. So far as I know, such a salt doesn’t exist. If one of your 14K gold rings is discolored, it might possibly be the copper in the alloy, but I can’t imagine that’s likely. More likely is that you got taken in when you bought it 
Now that I think about it, in fact, it doesn’t make sense for silver or gold to salt out with chlorine in pool water. Silver chloride is white–are you sure that’s what you have?
LL
Sterling silver should not corrode from exposure to pool water, no matter how heavily chlorinated, and neither should the gold, if it’s alloyed with copper, as is usual. If it’s alloyed with a non-noble metal, it might. I tend to agree with LL that you were likely had when you bought the items.
If you’re confident of the purity of your jewelry, and they do somehow get some sort of corrosion on them, then you can use almost any acid other than nitric to clean them (hydrochloric, for example). HCl will not touch gold, silver, copper, or platinum, or any alloy of the above, but it will dissolve most other metals, and almost all salts. It’s sold under the name “muriatic acid”, and is the active ingredient for many toilet and oven cleaners.
Just to reiterate, do NOT use nitric acid, which will attack noble metals with a vengeance, and produce a cloud of noxious, corrosive gas.
I’m reasonably sure of the genuineness of my rings.
As for the question of what the discoloration is, if it isn’t chloride it must be just good old fashioned tarnish. While we’re on the subject, what exactly is tarnish? If it is an oxide, then couldn’t the chlorine have been a contributing factor? I read once that when pool water is chlorinated, the chlorine itself doesn’t actually kill the
bugs, rather it somehow raises the water’s oxygen content.
Or maybe it causes the existing oxygen to form ozone. I don’t remember but it was something along those lines of the
O, and not the Cl, doing the killing.
Tarnish is a sulfide, Ag2S. Chlorine in pool water does raise the oxygen content, but I’ve never heard of any free sulfur/sulfide content in pools (some of the pH reducers are sulfites, but that shouldn’t react with silver).
Chronos is correct about hydrochloric/muriatic acid, as well as nitric acid. (Though I don’t think even nitric touches gold, I wouldn’t recommend using it, and I may be wrong on that one. I know aqua regia (half nitric, half sulfuric) will dissolve gold.
LL
I’ll throw this into the pot, half seriously, half jokingly. Maybe it might help:
A solution of a few tablets of aspirin dissolved in water gets the green chlorine stain out of blonde hair. Maybe it’ll work on your jewelry.