I wish I'd checked on this thread/community earlier, but it's been fun to read who planned what, and when.
I just want to say -- a chess game, even an endgame, with 4 pieces is still tough to implement, even if you know chess pretty well. I had to oversimplify certain things just to keep the focus on the narrative and avoid special cases. Inform 7 may not be the best tool for typing in Algebraic chess notation, but it was a fun challenge, and the original position brought back good memories for me.
I can't imagine I'll ever write another chess game. But I'm glad I wrote this one.