I went back to map this game and noticed something related to a pattern that I hadn't noticed before. That gave me an idea, which led to the elusive khopesh and from there I was able to finish the game. Woohoo! So I have now finished all 16 of the games remaining in the jam.
Great work Garry! (I have to say that, 'cause no one else will.)
But please, TWIB Productions, please fix all the bugs in your game. There were four of you working on this. Surely, at least one of you can read the forum and fix the issues raised here.