Monday, June 1, 2026

Report Alleges Chess Grandmaster Cheated in Over 100 Games

  • A report from Chess.com found more than 100 instances of likely cheating by grandmaster Hans Moke Niemann, including in prize money events.
  • Niemann has been banned from Chess.com and its upcoming $1 million tournament.
Shutterstock

The world’s largest online chess platform released its findings on a scandal that has shaken the chess community.

Chess.com’s investigation revealed that 19-year-old grandmaster Hans Moke Niemann likely cheated using computer assistance in more than 100 online chess games, including multiple prize-money events. 

The platform has banned Niemann and removed him from the Chess.com Global Championship, which carries a prize fund of $1 million.

  • Though Niemann had previously been suspended from Chess.com for cheating, the scandal began in earnest when world champion Magnus Carlsen dropped out of September’s Sinquefield Cup, forfeiting a chance at its $350,000 purse, after losing to Niemann. 
  • Carlsen’s shocking move brought scrutiny to Niemann’s postgame analysis, which other grandmasters called “incoherent” and below what’s expected of a player of Niemann’s rating.
  • Niemann’s rating has risen faster than any other player’s in history over a comparable time period.

Chess.com did not make a determination on whether Niemann had cheated during in-person games such as his fateful match against Carlsen, but said that the issue warrants further inquiry. The International Chess Federation (FIDE), the global governing body for the game, is conducting its own investigation.

Who Can Play Magnus?

The kerfuffle has been awkward for Chess.com and Carlsen, who are financially entangled after the platform agreed to acquire the champion’s company Play Magnus for $82.9 million in August.

Chess.com said it did not consult Carlsen on any of its actions surrounding its investigation or decisions to ban him.

This field is for validation purposes and should be left unchanged.

Sign up for
The Memo Newsletter

Get the biggest stories and best analysis on the business of sports delivered to your inbox twice every weekday and twice on weekends.

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Linkedin
Whatsapp
Copy Link
Link Copied
Link Copied

What to Read

How Philadelphia Built a $140 Million World Cup War Chest

Philly’s private fundraising is unique among World Cup host cities.

Philly’s 2026 MLB All-Star Game Turn Was Seven Years in the Works

With Atlanta complete, planning ramps up for the 2026 event in Philadelphia.
Oct 27, 2024; Philadelphia, Pennsylvania, USA; A general view of the Wells Fargo Center before game between Philadelphia Flyers and Montreal Canadiens.

Sixers, Flyers’ Grand Ambition: ‘Greatest Arena in the World’

The forthcoming venue will arrive with plenty of ambition among its owners.

New Philly Arena Was Key to City’s Successful WNBA Bid

The forthcoming team will play in a new arena in South Philadelphia.

Featured Today

Frances Cabral-Delaney

How Arsenal Fandom Went ‘Manic’

“People do not become Arsenal fans because it’s easy,” says Zohran Mamdani.
May 23, 2026; Anaheim, California, USA; Fans participate in a tarp off during a MLB game between the Los Angeles Angels and the Texas Rangers at Angel Stadium
May 28, 2026

‘Tarps Off’: How Shirtless Fans Took Over MLB

The viral movement began with the SFA club baseball team.
Apr 6, 2026; Arlington, Texas, USA; Seattle Mariners catcher Cal Raleigh (29) walks to the on deck circle during the game against the Texas Rangers at Globe Life Field
May 28, 2026

Why Ballparks Are Louder Than Ever

Some stadiums sound like veritable nightclubs. How did we get here?
May 24, 2026; Evanston, IL, USA; Northwestern Wildcats attack Kathryn Ratanaproeksa (13) shoots against the North Carolina Tar Heels during the first half at Martin Stadium
May 26, 2026

Can Women’s Lacrosse Buck the Trend in College Sports?

The sport is fighting to prove its worth in the revenue-sharing era.

Shedeur Sanders Banked $17.7M in NFLPA Licensing Income

Sanders shattered the record set by Tom Brady in the 2021 season.
Jannik Sinner
May 28, 2026

French Open Favorite Jannik Sinner Suffers Second-Round Upset

It was 91 degrees Fahrenheit during the match.
Tennis - French Open - Roland Garros, Paris, France - May 28, 2026 Paraguay's Adolfo Daniel Vallejo in action during his second round match against France's Moise Kouame REUTERS/Guglielmo Mangiapane
May 29, 2026

French Open Fines Player for ‘Sexist’ Comments Toward Female Umpire

Vallejo said his female official couldn’t handle a “demanding crowd.”
Sponsored

The Hidden Economy of Race Weekend

Learn more about the Vintage Flying Museum and how Spectrum Business is helping them achieve their business goals while fueling their dreams.
May 26, 2026

French Open Organizers Meet With Players After Media Protest

Players are asking for 22% of revenue by 2030.
May 24, 2026; Las Vegas, NV, USA; Kristian Gkolomeev (GRE) poses with Enhanced co-founder Max Martin after setting a world record in the 50m freestyle of 21.81 during the Enhanced Games at Resorts World Las Vegas.
May 25, 2026

Clean Athletes Stole the Show at the Enhanced Games

Three clean athletes won events against performance-enhancing peers.
May 22, 2026

Sabalenka, Sinner Lead Coordinated Media Protest at French Open

The players are seeking increased revenue and improved benefits from Grand Slams.
May 22, 2026

Stafford Signs $55 Million Extension With Rams

The 2025 NFL Most Valuable Player receives a sizable pay increase.