K0Lb@zzeR;123333... on the screen only 2 heroes should remain in this mission (from which we will choose the main one).

If this condition remains in force, I ask you to specify this in the rules,
so that no misunderstandings arise. This is important.
If not - please inform me otherwise.

Dirty_Player;123290How do you dismiss a hero sitting in the castle if he entered it on the last turn? Should I just leave him?

Yes, leave him. There is nothing more you can do with him anyway. But if this hero is the main one (his stats are good :) ) and he is not a scenario hero, then leave him near the castle, otherwise put him inside the castle so he's out of sight. That is, on the screen only 2 heroes should remain in this mission (from which we will choose the main one).I apologize for continuing this long-winded discussion, but I still ask you to answer my question.

So there is Gem, and there is another hero who performs the final action before victory (capturing the castle or a battle).
But there is also a 3rd hero who got "stuck" in the castle on the last cell. Moreover, this 3rd hero is the most valuable one, and I don't really want to hide him inside the castle.

You allowed the presence of such a "stuck" hero, and you also allowed a secondary hero making the final move.

So, can the skills of the "stuck" hero be taken into account when calculating results in this case, and will they be?
Or is it generally forbidden for a "stuck hero" to be present on the Heroes screen?
Dear organizers, the specific answer is not as important as the clarity needed to develop a tactic.
The rules should be unambiguous, not mutually exclusive.

P.S. So you don't think I'm being dense:
the quote "but if this hero is the main one and he is not a scenario hero, then leave him near the castle, otherwise put him inside the castle so he's out of sight"
implies that it is permitted to leave 3 heroes on the map, and whether to put the "stuck" hero in the castle or not can be decided based on stats.
This is where the question about having only 2 faces in the heroes window came from.
It wasn't answered, although it could have been.
Now I have to figure out the logic of this message as well.