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This is a video of Hans being checked before round 4 of the Sinquefield cup. https://www.chessdom.com/hans-niemann-was-thoroughly-checked-before-the-fourth-rou

This is a video of Hans being checked before round 4 of the Sinquefield cup. https://www.chessdom.com/hans-niemann-was-thoroughly-checked-before-the-fourth-round-of-the-sinquefield-cup-video/ https://www.chessdom.com/hans-niemann-was-thoroughly-checked... I don't know what else they could have done other than full body x-ray him. Make your own mind up whether these checks are stringent. In addition, there was a 15 minute broadcast delay. His record in that tournament for rounds 4 though 9 was loss, draw, draw, win, draw. Hans was the lowest rated player in the tournament by 57 points.

mannykannot 4y ago
That video itself immediately suggests some ways Niemann could offer to demonstrate he is not cheating, beginning with changing (under supervision) into clothing provided for him, and minimizing the number of people present at all stages. In any such proposal, he could reasonably require the same of his opponents and any monitors present.