Visual review of the game described in the previous post:
Ware Opening versus Modern Defense, but MD is not really designed for someone like myself ignoring guidelines and just marching their pawn all the way down edge. It's even less equipped to stop someone from taking out the "fianchettoed*" bishop, I think (*this long Italian "f" word is chess-speak for saying the bishop sits on one of the board's longest 2 diagonals) ...
I suspect my opponent either got distracted here, thought he had a Fool's-style mate, or thought he'd be able to keep me occupied from taking his knight long enough to lower the boom.
Definitely the most questionable series of moves in this game.
Opponent probably expected me to interpose something, not retreat.
Whether my opponent realized it or not, this was a setup for a bishop x-ray from him. IF I were so unwise as to take the pawn occupying d4, which I wasn't.