Offline tournament "Evil Lands".

A DESCRIPTION is an instruction on what and how to do, OR IS IT NOT TRUE!?
And the LEARNING PROCESS involves making the player completely independent, not just following the leader's results.

If a beginner player follows the leader's Walkthrough and achieves success, then the main training for such a player can be considered complete.

An individual strategy should be developed through trial and error.

And then what you wrote will start to take shape.

Therefore, I will repeat once again that the requirement for descriptions from leaders has the following positive aspects:
1. First, the best result is tested for validity, and this is tested by players who took 2nd or 3rd place (if they want, they may not want to, they may be satisfied with a brief description to understand everything).
2. If the Walkthrough turns out to be clean, then the description becomes an invaluable material for training.

Your rules state that players suspected of cheating will be checked by various methods, including by description.
On what basis can a player be suspected if the Judge only has the final saves at the end of the Tournament, and even then all the heroes (except 1 or 2) and troops are disbanded? Only by relying on the completion times that seem unrealistic to you? Such completion times usually seem unrealistic for leaders until they start to say something.

On what day did he arrive?

If you read the posts carefully, I wrote above when he arrived.
And I even have a conclusive save. I can send it to any player (save from the end of the 7th day), the player-verifier can run a turn from my save on his computer and see how the boat arrives - on the 1st day of the 2nd week. I hope you also have such a save on hand, just in case, since you are so against detailed descriptions :)