Re: Audi cup -Best is four teams each group, and we begin with the semi-finals to make things easier. If we have up to eight teams, we divide them into two groups; no additional rules are needed. The question is, how many teams are interested in the Audi Cup ?
No no, this will not be a real cup. This is just glorified friendly match with multiple people. Think of it as league which will be finished in one round. Let's say 5 of us plays, whoever gets more correct answers gets 4 mBTC. Simple as that. If people are tied we use penalties.
What you are thinking of will be maybe implemented in next season and will last longer. This is just one round for fun.