I completely agree: I once played a single-player map that was clearly made by a mathematician: everything was thought out down to the smallest detail, and nothing was superfluous. Even calling a ship in the Dungeon and using expert scouting on the hero in prison turned out to be useful. If I had taken a chest with my main hero or dismissed the freed hero, I would have had to start all over again, as I now understand. When, after a couple of hours, I saw a red dragon on a mountain of gold on the screen, the first thing I wanted to do was thank the author for such a well-thought-out map, for the pleasure I got from following the creator's idea...

Added 6 minutes later
As for the battle, I think that in the first round, the Titans should move one cell down and then use the force field.