The second one with the Pawn Fork Trick in the Pirc.
You need to go further, in some cases further than some books on the Pirc do.
here after 6...Nxe4
A common reply is 7.Bxf7+ we have both been on the Black side of this on here.
One of yours is Game 6971092
and mine is Game 5382472
After 7...Rxf7 8.Nxe4
Black must pause for 8...h6 to stop the awkward Ng5 (as we both did.)
Now it's now theory, I recall back in the early days is was not mentioned and
stopped where you did.
I hit on 8...h6 after getting walloped OTB because I left it out.
Even with 8...h6 played there is still work to be done, though Black does
have the easier task, but even with h6 White has wins here and OTB.
Good thread, I've seen nothing new but keep up the good work, someone
will use an idea. These tricks and traps are older than God's dog but they
still catch people out.