Construct a game that ends with White checkmating by playing 5. Qxe4# Start from normal setup

I can't even find the given solution. (Of course I'm looking for any solution.)

This is from the "advent of chess"-chesscalendar ny Offerspill chess club
www.adventofchess.com/day/9

Yeah that's very clever. I can't see any other way to cover the d6 square as well as the f6 square in time. And if you push the pawn to f6 it creates a hole. Usually there's multiple solutions to chess puzzles like this, (8 Queens on a blank board not guarding each other, etc.) But here it seems there's only one.

Oh huh, there's a whole little genre of "chess games (or just positions) that are uniquely determined by their last move". So an easier one is a game ending 3... Qd4#. And the deepest known is 7... Kxb7#, which seems mind-bending!

wismuth.com/chess/problems-moves.html