This rule CAN be tracked. To do this, all players must make daily saves. And, upon request, provide them along with a detailed walkthrough.

It's possible, but is it necessary? I'm saying he won't check everyone, and if someone accidentally makes a mistake and takes 10th place, who will rigorously check that player? He's not a leader, but nevertheless!

As for the example given above, a level 1 hero is not considered "leveled up"; a leveled-up hero is one who has gained at least one level.

So, you can't buy a hero that isn't yours and that has a level > 1 (even if I killed him with my own hero)? Am I understanding correctly? But I'm not an expert on Heroes II; is there a way to load a save to manipulate the shop? :) And does any hero initially have level 2?