Taking advantage of scenario knowledge

[Skryabin]

I suppose the fairest way to handle it if the opponent really cares (so far no one has) is to tell them to open the file from both sides and get a look at what the opponent has and where it's coming from. Then play, kind of like a mirrored game.

Well I was lucky to get from my decent opponents such a nice advice :) Is there anyone who starts an unfamiliar scenario without opening and studying it in advance?

:chin:
Dmitriy