@ nuclearturkey: Thanks for the reply, I have to admit that I wasn't fully aware of all the things you mentioned about the 2nd puzzle, but pawn on g3 was actually the first thing I saw. I'd like to see the full game or at least continuation to the end of the game.
Oh, and this is in my opinion best recorded live performance of it: youtube video
(for everyone else, the real thing starts at 2:45 and then at 5:35 - but it's not as great as it is in context with the rest of the song)
my take on the first diagram
In your line, what happens after 5...Qxe3+?