cocaine
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ВЛК777 - he's supposedly the FB winner on ХВ, isn't he?
And if they are not allowed to play at all - they will create new accounts and still continue playing (changing the OS, network card and IP address is not a problem nowadays)...
But here you are not entirely right about cheaters!
Yes: they can create a second account for themselves and submit an application,
But: they will not be able to participate in the tournament, because their rating will be low and they will simply be pushed out by players with a higher reputation who submit applications, the number of participants is not unlimited)
IMHO, if we remove the known cheaters, maybe participants who did not sign up solely for this reason will still sign up for the tournament.