Yesterday, I had a meeting with the club owner. We have two options:

1. We rent the entire club and have it all to ourselves from morning to evening for 18,000 rubles per day.

2. We reserve the number of computers we need in one part of the hall, separate it with screens, do our own thing there, and manage the entry. In short, if anyone from the hall interferes with us, security will escort them out, and only those we allow will be admitted to the club, based on certain moral or other considerations.
We will pay 50 rubles per hour for all of this :) for each computer we rent, plus whatever we order there (beer, snacks, etc.). They allowed me to bring my own strong drinks, because a bottle of vodka there costs 900 rubles. :)
We're discussing it.

Of course, it would be nice to hold such a tournament using Chaos rules.