Play aggressively and in positions you're comfortable with. They expect you to play passively and those are easy wins for them.
In most situations you would steer towards tactics over position. Tactical ability peaks fairly young while positional knowledge tends to grow over time. A master is most likely going to be past his tactical peak and relying more ...
The answer is it depends. You're actually asking a couple of different questions though.
First of all, a narrow vs. a broad rep. Most players are probably better off steering their games into a narrow rep where they limit the opponent's responses and steer the game into positions they know. However, because of engines, I don't believe you can be a ...
This is a case that is decided by the director's discretion.
18G. Adjudications. Only under emergency circumstances may a director permanently adjudicate a game; that is, declare a result based upon best play by both sides.
An interesting rule is:
15G. Ownership of scoresheets The scoresheets of all games in a tournament are the property of ...
If you find yourself in the UK, the Central London Chess Congress at Imperial College has an over-18's policy due to licensing restrictions on the venue. It is, not just for this reason, one of my favourite events on the chess calendar.