regulations. The team was disqualified and the Saint Louis Arch Bishops were subsequently crowned champions. Chess.com and the PRO Chess League both issued lifetime bans to Petrosian. In March 2021, an Indonesian player identified as Dadang Subur played a computer-assisted game against Levy Rozman, obtaining over 90% accuracy. Rozman identified a pattern of cheating and reported Dadang's account. The Indonesian media claimed that Dadang was a legitimate player, inciting an online firestorm against Rozman. Dadang's subsequent match against IM Irene Sukandar received 1.25 million live viewers on YouTube, a historic record for a chess stream. Dadang lost three consecutive matches to Sukandar, with an accuracy of less than 40%. In September 2022, World Champion Magnus Carlsen accused Hans Niemann of cheating during the 2022 Sinquefield Cup. A report from Chess.com alleged that Niemann had cheated in over 100 online games, including prize money events. The report found evidence of Niemann toggling to a different screen during moves, as well as concluding that Niemann had cheated against top players, including Daniel Naroditsky, Krikor Mekhitarian, David Paravyan, Ian Nepomniachtchi, and Benjamin Bok. Niemann had privately confessed to the allegations to Chess.com's chief chess officer, Daniel Rensch, and was banned from the platform. In October 2022, Niemann filed a $100 million lawsuit against Magnus Carlsen and Chess.com, accusing them of defamation. Historical One of the earliest known cases of using technology to cheat occurred in the 1993 World Open. An unrated player using the name "John von Neumann" (not related to John von Neumann) won out of 9 games in the Open Section, including a draw against a grandmaster. This player was wearing headphones during the tournament, and had a suspicious bulge in his pocket that buzzed during certain moments of the game. He was disqualified when the tournament director found that he lacked even a basic understanding of chess. The 1998 Böblingen Open saw Clemens Allwermann latterly accused of cheating using Fritz, and after an investigation by the district attorney was inconclusive as to the evidence, the Bavarian Chess Federation barred him from participating in future tournaments. In the Lampertheim Open Tournament 2002 the arbiter announced the disqualification of a player before round seven. Markus Keller explained what had happened: In the sixth round a player came to me and said he suspected his opponent, W.S. from L., was using illicit aids during the game. He often left the board for protracted