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What are the options? Many people have already given detailed recommendations on what the cheaters need to do. Change your nickname, change your IP, and do whatever you want. In my opinion, the most logical thing to do upon the first detection of a cheater is to prohibit them from changing their nickname! And the administration should track them by IP address so that, God forbid, they don't try to participate in the next tournament under a different nickname. Upon repeated detection, as Hacker rightly points out, they should be banned from participating in tournaments on this forum. Again, track their nickname change by IP address. In this case, if a person still wants to participate in tournaments here, changing their nickname alone won't help if the security service is working properly. In this case, the only thing that will help them is to change their nickname at the same time as changing their IP address, which will incur material costs for the violator, and this will at least be some real punishment, and not everyone will figure out how to do it.
It seems to me that we need to take the IP address of each participant in any tournament and store them in a specific database, so that we can track not only one player, but all of them, to prevent duplicates. I think this would be correct, but the question is: is it possible?
