Woah!! How could I take this negatively?! This is the exact kinda feedback I was hoping for! :D You explained what you appreciated about the game (thank you!!) but then also took time out of your day to document a significant flaw in the game in detail and how to potentially fix it. I really, really appreciate that.
That said, you’re right — it is a game breaking flaw. I seem to remember implementing that function (hen moving right after spawning) at some point during development so that the hen wouldn't be hidden under the other hen and players immediately understand that it just hatched. I think I implemented that function, called it a day and then forgot to check whether this actually causes problems. And after testing the game a hundred times myself, I just didn’t see the "safe" hens. Just goes to show that playtesting AND documentation are fundamental even with smaller projects...
That said, the way you described your method for the 3 hens is so impressive that it almost feels like a pro strategy rather than a flaw/bug. :D I will fix this, of course. But just out of curiosity: Do you remember what your high score was?
Again, thank you so much for this comment and writing all of this up! You made my day.