I was so tired after creating the game that I didn't even take the time to try it out. So I didn't even notice that these grid edges were preserved from all events. I fixed that, as well as a few other bugs. I didn't manage to “finish” the game. So I still don't know what happens when you find yourself alone in the middle of a complete grid. Probably nothing good for us.
I admit that the game does make you want to be chased, but I'm not sure how. I think I'll let it rest and maybe come back to it one day.
Anyway, thanks for playing and well done for getting this far in the game.