This is IMPOSSIBLE!!!
It takes 3 days to reach any town.
I apologize for the typo; I made a mistake, it's 5 days!!!
Two castles are taken without a fight, and the remaining 2 join by the 5th day.
By the 5th day, he has all the towns, and before the last one, there should be a computer-controlled unit that attacks him.
As Alan said, in this case, the 5th day would be counted, not the 6th.
I wonder where he disappeared to...????
Sincerely,
Prorock.

Как много в жизни есть путей
Для добродетелей и мира.
Я вернулся...