Netflix Untold Explores Notorious Chess Cheating Scandal

Netflix has released a documentary titled Untold: Chess Mates, which examines a high-profile cheating scandal involving two chess grandmasters. The film focuses on the fallout from a match between world champion Magnus Carlsen and American player Hans Niemann, exploring how the incident transitioned from a competitive sporting dispute into a broader digital phenomenon characterized by online gossip and conspiracy theories.

The documentary analyzes the intersection of traditional competitive gaming and the influence of internet culture. It details how accusations of cheating led to a lawsuit and a bitter rivalry, while highlighting the role of social media in amplifying unconventional theories regarding the methods used to cheat during the match.

The Anal Beads Controversy and Online Amplification

A central element of the documentary is the investigation into a specific and bizarre theory that gained traction online. Following Niemann’s victory over Carlsen in 2022, rumors circulated that Niemann used a vibrating sex toy, specifically anal beads, to receive signals and direct his play.

The film explores how this theory, which the documentary describes as the sort of thing that would be laughed out of the Black Mirror writers’ room, moved from niche online forums into the mainstream press. The production utilizes archive footage to show how the incident was ridiculed by public figures, including Trevor Noah and Piers Morgan.

Hans Niemann discusses the lasting impact of these rumors in the film, stating that Every conversation I have about chess leads to anal beads.

The Rivalry Between Niemann and Carlsen

The documentary contrasts the perspectives of the two players. Hans Niemann is presented as a young American upstart who leveraged online chess to gain prominence. In the film, Niemann asks, What price do we pay for genius?!

Magnus Carlsen, the Norwegian world champion, remains skeptical of Niemann’s achievement. Carlsen expresses disbelief that Niemann could have won the match without cheating, suggesting that Niemann was trying to cosplay as a top chess player.

Production and Availability

Untold: Chess Mates is part of the Untold sports documentary series. The film is categorized by Netflix as a documentary focusing on sports and fraud. It is available with audio options in English, German, Spanish (Latin America), French, and Italian, with subtitles provided in English, Spanish, French, and Chinese.

The documentary is rated TV-MA and was listed on the Netflix official site as of March 10, 2026. It seeks to dig into the stranger-than-fiction story of how a match between grandmasters devolved into a global scandal.

While the documentary provides a comprehensive look at the media furore and the subsequent legal battles, some critical reviews, such as that from The Guardian, suggest that the film offers little new information regarding the events that transpired after the initial scandal.