Thursday, May 7, 2026
Law

Chess Grandmaster Makes His Countermove: Sues for $400M

  • Chess grandmaster Hans Moke Niemann has sued Chess.com, world champion Magnus Carlsen, and others, seeking $400 million in damages.
  • Carlsen and Chess.com have both accused Niemann of cheating.
Magnus-Carlsen-Chess
Shutterstock

Hans Moke Niemann is taking his attacking style from the chess board to the courts.

The 19-year-old grandmaster is suing world chess champion Magnus Carlsen, his company Play Magnus, Chess.com, its chief chess officer Daniel Rensch, and grandmaster and popular chess streamer Hikaru Nakamura, for defamation and “colluding to blacklist” Niemann from chess.

The lawsuit, filed in a Missouri district court, seeks at least $400 million in damages across five causes of action.

  • Carlsen shook the chess world in September by withdrawing from the Sinquefield Cup, which carries a $350,000 prize pool, after losing to Niemann. 
  • He later accused Niemann directly of cheating in a written statement.
  • Nakamura stated that he was suspicious of Niemann following the match, namely due to Niemann’s postgame analysis, which he and other grandmasters found lacking.

Chess.com, which Niemann’s lawyers, Terrence Oved and Darren Oved, called a “multibillion-dollar behemoth,” agreed to buy Play Magnus for $83 million in August. 

Report Alleges Chess Grandmaster Cheated in Over 100 Games

Chess.com found that grandmaster Hans Niemann cheated extensively.
October 5, 2022

Did He or Didn’t He?

Niemann admitted cheating online in isolated incidents at the ages of 12 and 16 and once for prize money at 12, but otherwise claimed he has “never cheated” during in-person games or prize money events, calling it “the worst thing I could ever do.”

Chess.com later put out a report stating that Niemann “has likely cheated in more than 100 online chess games, including several prize money events.”

The report drew no firm conclusions on any of Niemann’s over-the-board games, including the fateful one against Carlsen.

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

Apr 16, 2025; Washington, DC, USA; FIFA President Gianni Infantino speaks during a press conference at Audi Field.

FIFA President Compares High World Cup Prices to College Football

The bizarre comparison comes after fans have criticized FIFA over ticket costs.
FanDuel

FanDuel CEO Pushed Out After Five Years Amid Stock Slump

Shares of Flutter, FanDuel’s parent company, are down more than 50% this year.

Kara Lawson Took Amazon Job to Scout WNBA Players for Team USA

Lawson will be a WNBA game analyst for Amazon Prime Video.

Napheesa Collier Admits Engelbert Rant Was For CBA Leverage

The WNBA and WNBPA agreed to a new labor deal in March.

Featured Today

Tottenham Spurs

Tottenham Hotspur Is Facing a Billion-Dollar Disaster

A seemingly improbable drop to England’s second tier is a tangible possibility.
Cricket - Indian Premier League - IPL - Final - Royal Challengers Bengaluru v Punjab Kings - Narendra Modi Stadium, Ahmedabad, India - June 4, 2025 Royal Challengers Bengaluru's Rajat Patidar lifts the trophy as he celebrates with teammates after winning the Indian Premier League
May 5, 2026

How Private Equity Fell in Love With Indian Cricket

India’s U.S.-style cricket league has become a private-equity playground.
Kaitlin Oaks (left) from Tampa looks at photos with Layla Abutha from Tampa while attending Thurby at Churchill Downs during the week of Kentucky Derby on Thursday, April 30, 2026.
May 1, 2026

Kentucky Derby Is Courting Gen Z

Churchill Downs is mixing traditional splendor with a youthful atmosphere.
INDIANAPOLIS, INDIANA - MARCH 25: Caitlin Clark of the Indiana Fever sits on the baseline and makes photographs during the Indiana Pacers game against the Los Angeles Lakers at Gainbridge Fieldhouse on March 25, 2026 in Indianapolis, Indiana.
April 22, 2026

Why Athletes Are Moonlighting As Sports Photographers

Athletes are swapping courtside seats for sideline cameras.
April 28, 2026

Damon Jones Admits He Sold LeBron Injury Information to Gamblers

Jones also pleaded guilty Tuesday in the rigged poker case.
April 30, 2026

Puma Denies Its Carbon-Plated Shoes Cause Injuries After Lawsuit

The company pushed back on claims that its shoes increased injury risk.
Sponsored

What Is It Like to Run the Knicks?

Dave Checketts on his time running the Knicks & Jazz, Jordan war stories, and his investment strategy across major sports leagues.
April 28, 2026

Star Runner Says ‘Defective’ Puma Shoes Ruined Her Career

A series of foot surgeries prematurely ended her career.
Mar 31, 2025; Washington, District of Columbia, USA; Miami Heat guard Terry Rozier (2) drives to the basket against Washington Wizards guard AJ Johnson (5) during the first quarter at Capital One Arena. Mandatory Credit: Reggie Hildred-Imagn Images
April 27, 2026

Prosecutors to Bring Bribery Charges Against Terry Rozier

Rozier allegedly “solicited and accepted a bribe.”
Apr 22, 2026; Oklahoma City, Oklahoma, USA; Phoenix Suns guard Jalen Green (4) drives around Oklahoma City Thunder guard Alex Caruso (9) in the first half during game two of the first round of the 2026 NBA Playoffs at Paycom Center.
April 24, 2026

Suns Beat Ex-Employee’s Racial Bias, Security Lawsuit

“There was no settlement and there will be no payment to Mr. Traylor.”
April 23, 2026

Convicted Fraudster At Center of Clippers Case Cooperated With NBA

Joseph Sanberg is scheduled to be sentenced on Monday.