Chess grandmaster Hans Niemann denies using vibrating sex toy to cheat

Hans Niemann was accused of cheating after he beat Norwegian grandmaster Magnus Carlsen last September.

https://www.bbc.com/news/world-us-canada-66921563

Chess grandmaster Hans Niemann denies using vibrating sex toy to cheat

Hans Niemann was accused of cheating after he beat Norwegian grandmaster Magnus Carlsen last September.

For those who haven't seen it- even if you don't have a background in data science or chess, this report is extremely damning. He's an unapologetic, manipulative, pernicious cheater.

https://www.chess.com/blog/CHESScom/hans-niemann-report

Hans Niemann Report

We appreciate your patience over the last several weeks as we have been working on a comprehensive report on Hans Niemann and the events following Magnus’ resignation in the 2022 Sinquefield Cup. We know many of you have been eager to hear from Chess.com, and while there is more we want to research around...

Chess.com
That’s 72 pages. Are there any highlights for interested non chess fanatics?
The main part of the report is only 20 pages. And there are a lot of figures.
The basic measure is “accuracy”: the percentage of moves that are the best move for that position. Computers are, as you would expect, inhumanly good on this measure. Better than the best human players, who will have “inaccuracies” even in their best-played games. It makes spotting cheaters pretty reliable and easy. Niemann has been busted for cheating online repeatedly, and analysis of his in-person play bears the same hallmarks.
Thanks! That’s a great summary!

BBC article summarizing some of the suspicions and evidence or lack thereof.

www.bbc.co.uk/news/uk-63140246

Hans Niemann 'likely cheated' in more than 100 games, investigation finds

It is likely Hans Niemann has cheated "much more often" than he has acknowledged, an investigation finds.

BBC News