World chess champion Magnus Carlsen accuses rival Hans Niemann of cheating: Not willing to play with him

World chess champion Magnus Carlsen has accused his rival, Hans Niemann, of cheating, saying he will never play against the American teenager again.

Carlsen resigned from the Julius Baer Generation Cup last week after one move against Niemann, who is approximately 200 Elo points behind him. 

Elo points is the rating system used to determine the relative skill levels of players.

"So far I have only been able to speak about my actions, and those actions have stated clearly that I am not willing to play chess with Niemann," Carlsen said in a statement on Twitter.

Carlsen, world champion since 2013, also withdrew from the Sinquefield Cup in St Louis, Missouri earlier this month after unexpectedly losing to the 19-year-old, sparking a furor of comments and allegations that Niemann had cheated. Niemann has denied any wrongdoing in over-the-board games.

"When Niemann was invited last minute to the 2022 Sinquefield Cup, I strongly considered withdrawing prior to the event. I ultimately chose to play," Carlsen said.

"I believe that Niemann has cheated more - and more recently - than he has publicly admitted," Carlsen said on Monday.