Since I started using the Grand Prix against the Sicilian this is something that comes up from time to time as white.
I can't recite squares from memory, but the gist is the Queen moves up to form a battery in front of my rook. I then offer a pawn exchange that leads to their knight being attacked and pinned due to a mating threat. It's not much of a trap for higher rated players but it works on occasion and sometimes leads to strong threats.
Question for the skilled players, is it sound or is it actually weak? How about the rest of my choices in this game? I'm white.