Maybe there could be a way to assign a chess IQ to a player.
The computer program would analyze his matches and do the calculation.
Then, if he was accused of cheating, the computer would analyze his moves in that match, and assign a chess IQ for it.
If, for instance, a guy's previous composite chess IQ was 140, and then for the match in which he was accused of cheating it jumped to 170, that might be a good indicator that he had in fact cheated.
With enough data, I think it would be possible to assign the probability that if his normal chess IQ was 140, that in a particular match it could jump up to 170.
The federation could make a rule that, for instance, if the probability of such precipitous improvement was less than, say, 0.0001, that he would automatically be disqualified.
I guess this would be similar to the blood tests performed on athletes for banned performance enhancing drugs.
I'm pretty sure, that if an athlete's testosterone level is beyond a certain level (the level depending on age and gender), the athlete is disqualified.
I think the rationale is that such a high level is very highly unlikely (you can never say impossible, right?), unless the athlete takes some chemical to produce it.
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