A THREAD FOR NEWCOMERS!

1. Can you always see which Castle your opponent has in the tavern? In all versions of Heroes 3?

It shows not the Castle, but the hero. And the strongest creature in the army.
Stats of the hero from 2 taverns. Army strength from 4. Completely all the info from 5.

That is, you can play as Rampart, have the main hero Tazhar, and the strongest unit will be an Archangel.

2. What is the optimal difficulty for a random map for two players?

160% is the optimal difficulty (Queen). This is the standard for online play.

3. Why is it better not to play with water?

Because there are no good templates for playing with water.
And instead of filling the zones with something good, there will just be water. And it is not uncommon for a shipyard to guard a GO (Main Guard between players). This could be a group of angels, for example, and so on.

4. On which week is it best to attack?

There is no definitive answer. You need to attack when you have an advantage (or at least you think you do :D)