The first stage of the tournament "named after Van Kanigem"

The probability is, of course, very small, but it exists: Imagine that the entire map has been completed, and only one hero remains from the AI players: blue and red. And two heroes from the player, who are standing in castles. In the first and second games, if the AI loses a castle, it will definitely try to recapture a village or town. Therefore, the game may end on the AI's turn, and there is no way to disband one of the defending heroes beforehand. Then the final save will contain several heroes of the player.
That's the kind of fantastic situation! :)
Therefore, the rules need to be amended: "The final save must contain only one hero of the player; otherwise, the tournament organizers will choose a hero at their discretion." Or something like that.