So i had nothing to do and decided to look into the behaviour of the 3rd single player boss (the one that splits). To do this i was looking for a map with long straight lines of territories to get an easy measure point for the number of territories so i decided to use : https://www.warlight.net/Map/15831-Mouse-Snakes
After that i set up a spreadsheet to put in all the results i got from playing the game over and over (inmense loading times cause of big map) and now after 8 tries with 12 AI's on the bosses i've decided to actually share it in open with all i've got so far.https://docs.google.com/spreadsheets/d/1tXwHMrJVunBZ_45jOvGKZp8bOAFlZ4HJZDkwjlbp3g4/edit#gid=796318218
- All distances are calculated from the territory the boss was attacking from
- The 100 armies boss spawns 4 bosses with 90 armies (stage 1)
- The 90 armies boss spawns 3 bosses with 80 armies (stage 2)
I feel like the stage2 charts aren't representing the full picture since bosses can't be placed in the same territory as a other boss is already in and they never spawn on the territory you were attacking from with the boss.
This means some of the boss spawns in stage 2 were higher from the beginning since there were no free spaces closer to the original position of the boss.