General discussion about Heroes of Might and Magic II.

I just looked at the description of a tournament by a very skilled player, and I was actually planning to check out the winner's save file, but I keep forgetting. Anyway, it all worked out somehow. Initially, I planned for 7 days, but then I had to replay to capture the Wizard Castle on day 4, and then I realized that on that day, I could capture two out of the three remaining Castles. Day 2: Capture the Barbarian Castle and defend against a hero. Day 3: Capture the Warlock Castle and defend against a hero. Day 4: Capture the Wizard Castle, defend against a hero, and capture the Sorceress Castle. Day 5: Capture the Knight Castle and eliminate the last hero on the map (a Knight. Sometimes, the Knight would defeat the Sorceress and return to recapture his Castle; I managed to defend against him once out of about 30 attempts). In general, the strategy boiled down to forcing the enemy hero to attack after capturing the Castles, leading to a battle between the Sorceress and the Knight on day 4. Is it really possible to succeed with this approach? Will the army be sufficient? Well, let's assume the Beaver is incompetent; he might have left Orcs behind, shot down the Trolls, and captured the Castle with minimal losses. But the Warlock, with his large number of flying units, especially the two green ones, will significantly hinder our advance. And then there's the Wizard. It seems that the Sorceress and the Knight were just standing around doing nothing. When I played this scenario on King difficulty, you can't buy a hero on the first day, and there are enemies who want to capture your Castle, and the pillar that reveals the map is not exactly on the way. No matter how many descriptions I read, they all point to the same thing: calculate the minimum number of days it takes to reach the furthest Castle, assuming your hero has an army with "very fast" speed starting from the second turn. This number is the solution. In this calculation, the enemy doesn't really exist. Also, I wanted to ask: does the creator of the save file calculate something and base their decisions on it, or do they just choose the first available option?