The grandmaster is suing world champion Magnus Carlsen and online platform Chess.com, among others.
Hans Niemann, the 19-year-old American grandmaster at the centre of an alleged cheating scandal, is suing world champion Magnus Carlsen, online platform Chess.com and others for slander and libel and is seeking at least $100m in damages.
The lawsuit, filed at a US District Court in Missouri on Thursday, also listed Carlsen’s online chess platform Play Magnus, Chess.com executive Danny Rensch and US grandmaster Hikaru Nakamura as defendants.
Niemann claimed that the defendants are “colluding to blacklist” him from the professional chess world and that he has been shunned by tournament organisers since five-time world champion Carlsen publicly accused him of cheating.
Niemann had previously been banned from Chess.com for cheating online, having admitted he had not played fairly in non-competitive games on the website in his youth but denied any wrongdoing while contesting over-the-board games.
Carlsen’s surprise defeat to Niemann and his subsequent withdrawal from the Sinquefield Cup in St Louis, Missouri in September sparked a furore of comments and allegations, including from Nakamura, that Niemann had cheated.
Weeks after the Sinquefield Cup, Carlsen resigned after just one move against Niemann in an online tournament and said later in September he believed Niemann had “cheated more – and more recently – than he has publicly admitted”.
In a statement on Thursday, lawyers for Chess.com said there was no merit to Niemann’s allegations and that the company was saddened by his decision to take legal action.
“Hans confessed publicly to cheating online in the wake of the Sinquefield Cup, and the resulting fallout is of his own making,” the statement read.
“Chess.com looks forward to setting the record straight on behalf of its team and all honest chess players.”
My lawsuit speaks for itself https://t.co/rOfUxiNYCH
— Hans Niemann (@HansMokeNiemann) October 20, 2022
Chess.com banned Niemann after the first match against Carlsen and published a report earlier this month that said he had likely cheated more than 100 times in online games.
Niemann’s lawsuit said that Chess.com banned him “from its website and all of its future events to lend credence to Carlsen’s unsubstantiated and defamatory accusations of cheating”.
“Carlsen, having solidified his position as the ‘King of Chess,’ believes that when it comes to chess, he can do whatever he wants and get away with it,” the complaint added.
The lawsuit further accused Nakamura, a streaming partner of Chess.com, of publishing “hours of video content amplifying and attempting to bolster Carlsen’s false cheating allegations”.
The International Chess Federation (FIDE) said it would open an investigation into the allegations of cheating last month.