Netflix Untold: Chess Mates – Carlsen vs Niemann Replay Lab

Untold: Chess Mates is a Netflix documentary that explores the bitter rivalry and massive cheating scandal between chess grandmasters Magnus Carlsen and Hans Niemann that began at the 2022 Sinquefield Cup.

Untold: Chess Mates premiered globally on Netflix on April 7, 2026, as part of Volume 4 of the Untold sports documentary series.

The documentary primarily features Magnus Carlsen, Hans Niemann, Henrik Carlsen, and Chess.com executives Erik Allebest and Danny Rensch.

No, the documentary largely retreads the known history of the scandal and the lawsuit without providing a 'smoking gun' proving Niemann cheated over the board.

Yes. Directed by Thomas Tancred, the documentary focuses heavily on the human drama, the psychological warfare, and the mechanics of internet cancellation, making it accessible to non-players.

In September 2022, World Champion Magnus Carlsen lost to 19-year-old Hans Niemann over the board and subsequently withdrew from the tournament, implying Niemann had cheated. This launched the biggest controversy in modern chess history.

During Round 3 of the 2022 Sinquefield Cup, Niemann, playing Black, defeated Carlsen. The next day, Carlsen withdrew from the event entirely, sparking global media coverage.

Carlsen withdrew because he suspected Niemann was not playing cleanly, later stating that Niemann wasn't tense or fully concentrating during critical moments of the game.

There has never been any concrete evidence that Hans Niemann cheated over the board against Magnus Carlsen at the 2022 Sinquefield Cup.

Shortly after the Sinquefield Cup, Carlsen drew Niemann in an online tournament. As a protest, Carlsen played 1.d4 Nf6 2.c4, and then immediately resigned on move 2.

In the documentary, Carlsen maintains his suspicions about the 2022 game, though he acknowledges the lack of concrete physical evidence.

The feud started at the Sinquefield Cup on September 4, 2022, where Hans Niemann defeated Magnus Carlsen with the black pieces in a Nimzo-Indian Defense.

You can replay over 40 of their encounters, including the Sinquefield Cup game, the Julius Baer protest, and their modern rematches, directly in the Replay Lab on this page.

Yes, Hans Niemann admitted to cheating in random online games on Chess.com when he was 12 and 16 years old, describing it as a massive mistake made to boost his streaming career.

Chess.com released a report claiming Niemann had likely cheated in more than 100 online games, contradicting his claim that he had only cheated a few times as a minor. However, they found no evidence of over-the-board cheating.

Yes, immediately following Carlsen's withdrawal from the Sinquefield Cup, Chess.com privately removed Niemann from their platform, which became a focal point of Niemann's lawsuit.

Yes. In October 2022, Hans Niemann filed a $100 million defamation and antitrust lawsuit against Magnus Carlsen, Chess.com, Hikaru Nakamura, and others.

A federal judge dismissed the antitrust claims in 2023. Later, all parties reached a private settlement out of court, and Chess.com reinstated Niemann's account.

In August 2023, the parties announced a resolution. Carlsen acknowledged there was no determinative evidence of over-the-board cheating, and Chess.com fully reinstated Niemann.

The Chess.com executives provide insight into their anti-cheating algorithms, their decision to ban Niemann, and the internal communications happening during the scandal.

A viral, satirical internet rumor suggested that Niemann was receiving engine moves via vibrating anal beads. The absurd theory was picked up by mainstream media and figures like Elon Musk.

Yes, the documentary covers the bizarre media frenzy surrounding the rumor, highlighting how online gossip turned a serious chess dispute into a global punchline.

Niemann vehemently denied cheating over the board, gave passionate interviews stating he would 'play naked' to prove his innocence, and filed a massive defamation lawsuit.

Nakamura was highly critical of Niemann on his stream, highlighting Niemann's past online cheating and analyzing his post-game interviews, which led to Nakamura being named in the lawsuit.

The chess world was deeply divided. Many supported Carlsen's stance on fair play, while others criticized him for ruining a young player's reputation without hard proof.

The story went mainstream because it involved the greatest player of all time, a defiant underdog, an absurd internet rumor, and a high-stakes $100M lawsuit.

Yes, following the legal settlement, they have played numerous times in events like the Speed Chess Championship, World Blitz Championship, and Titled Tuesdays.

Magnus Carlsen decisively defeated Hans Niemann in the 2024 Speed Chess Championship in Paris, further fueling their intense rivalry.

They played a highly anticipated match in the knockout stages of the World Blitz Finals in New York on December 31, 2024. Use the Replay Lab below to review the games.

Despite the immense pressure, Niemann continued to play prolifically, eventually crossing the elite 2700 ELO threshold.