>>>I understand, you can play with friends whom you trust. However, official tournaments are not feasible anymore. As it stands now, even regular chess tournaments, without 'sealed moves' (i.e. all games must be finished in the same day) still bring accusations that some players use computers in restrooms, or get correct moves by cellphones, etc.
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>>Don't forget the steroids
>
>So far, it is not an issue :). Pharmaceuticals are still not able to come up with medications improving brain mobility.

You know what I guess that they have blood transfusion. Their blood is oxygenated and things like that