U.S. District Court Judge Audrey Fleissig rejected Niemann's claims that Carlsen and Chess.com broke antitrust laws by colluding to exclude him from lucrative tournaments.
Fleissig also found she did not have jurisdiction over Niemann's state law claims for defamation and breach of contract, among others.
Chess.com, the largest online chess platform in the world, appeared to back up Carlsen's claims when it said it had uncovered evidence of repeated cheating in Niemann's online playing history.
Chess.com merged with Carlsen's online chess company in December 2022.
Carlsen and Chess.com denied those allegations, saying Niemann has still been able to compete in major tournaments.
Persons:
Magnus Carlsen, Hans Niemann's, Chess.com, Audrey Fleissig, Niemann's, Carlsen, colluding, Fleissig, Niemann, Jack Queen, Sandra Maler
Organizations:
Ninth, Academy Museum of Motion Pictures, REUTERS, U.S, Thomson
Locations:
Los Angeles , California, U.S, Missouri, St, Louis , Missouri, New York