My interpretation:
Dogs:
Three categories, Mon Tues Weds, 2 slots for each, 6 total spots, 6 total variables. LP had to be together, G and H couldn't be together, and K and S were left over. This means that G has to go with either K or S and H ha to go with either K or S; thus, K and S can't go together. The only thing to watch out for after that was the conditionals that had to do with the days of the week.
Meetings:
F F F M R S T seven meetings for seven spots.
"TS" were a block where T had to be before S. F's couldn't touch so "FFF" and "FF" was prohibited. M couldn't be in 1 or 7; R was random.
Most of the questions focused around placing the variables so that the "TS" block couldn't be together like: "F _ F _ F M R" or "F M _ F R F _" or they would try to make it so that F's would have to be together like putting the TS block right next to R or M, like so "T S R _ M _ _" or "T S M _ _ R _" Once in a while one of the conditions would place R, TS, and the F's, and leave only a 1 or 7 spot for M. This game was very straight-forward.
I thought the parking game was fairly easy too. The Archealogical dig was the hardest game because of the "Century" element and the fact that not all the variables had to be represented ("O" didn't have to be in the 5 sites).
I had in order:
Senor Fuentes
Dogs
Archeologists
Parking Lot
Most posting here are about the last 2 games. Don't see much about the first two. I guess it is agreed those were pretty straightforward? Meaning if you worked them and found an answer it was probably right? No tricks?
I don't remember much about them other than I think the Dogs one took me a little longer. Especially one question at the end about who can't or couldn't go somewhere, had to work them all out.