Thursday, August 6, 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

Aug 6, 2026; Camden, NJ, USA; From left to right Philadelphia 76ers general manager Mike Gansey and guard Jaylen Brown and managing partner Josh Harris pose for a photo during his introductory press conference at the Francis J. Myers Recreation Center. Mandatory Credit: Bill Streicher-Imagn Images

Mike Gansey: Sixers Players Led LeBron Recruitment

Gansey’s own relationship with James dates back to high school.
Aug 6, 2026; Bedminster, New Jersey, USA; Bryson DeChambeau points right after his tee shot on the first tee during the first round of the LIV Golf New York tournament at Trump National Bedminster.

7 Burning Questions for LIV Golf Amid Claim of New Funding

Private equity firm BC Partners is reportedly exploring a deal with LIV.

Netflix Wants to Not ‘Do Too Much’ With Field of Dreams Game

The upgraded Iowa complex now has a permanent stadium. 
Fanduel logo appears in this illustration taken April 22, 2026.

Gambling Industry Gears Up for ‘Arms Race’ This NFL Season

“Competition is fierce,” BetMGM CEO Adam Greenblatt said.
podcast thumbnail mobile
Front Office Sports Today

8/6/26 – LIV’s Funding Promise, Disney Sells Out Super Bowl, Inside Tom Brady’s CardVault

0:00

Featured Today

Joey Spallina of the Maryland Whipsnakes

How Eye Black Became ‘War Paint’ on the Field

“You’re going into battle, doing something you only do on game days.”
August 6, 2026

Tom Brady Explains His Aggressive Push Into Trading Cards

Brady talked to FOS about his eponymous card company.
FILE PHOTO: Cricket - Indian Premier League - IPL - Mumbai Indians v Chennai Super Kings - Wankhede Stadium, Mumbai, India - April 23, 2026 Mumbai Indians' Suryakumar Yadav in action
August 5, 2026

India Is Stealing Cricket’s Throne From England and Australia

India’s insatiable appetite for cricket has shifted the traditional locus of power.
WPBL
July 30, 2026

Who’s Playing Women’s Professional Baseball?

Sixty players from 11 countries are descending on Illinois for six weeks.
Tom's Watch Bar
July 17, 2026

Sports Bars Are Cashing In From Summer of Soccer

The World Cup has brought a windfall to America’s biggest sports bars.

Feds Say Rozier Friend Threatening Witnesses in NBA Gambling Case

Prosecutors say De’Niro Laster has been intimidating witnesses on social media.
FILE PHOTO: New York Attorney General Letitia James speaks to the media in Norfolk, Virginia, U.S., October 24, 2025.
July 31, 2026

New York Calls Kalshi ‘Illegal Gambling Operation’ in $36B Suit

Kalshi called the lawsuit “political theater.”
DraftKings
August 4, 2026

DraftKings Dragged Into Prediction-Market Lawsuit Wave

DraftKings Predictions has been sued three times in the last week.
Sponsored

Saints Great Turns to Ownership

Marques Colston discusses his Champions Fund launch and finding success after football.
July 28, 2026

Major Figure in NBA Betting Case Pleads Guilty to Poker Fraud

Shane Hennen is implicated in all three federal gambling probes. 
Portland Trail Blazers Coach Chauncey Billups exits the Brooklyn Federal Courthouse after a hearing on illegal gambling schemes, in Brooklyn, New York, U.S., March 4, 2026. REUTERS/Eduardo Munoz
July 23, 2026

Chauncey Billups Continues Push for Speedy Poker Trial

Prosecutors are seeking a delay, while Billups pushes for a November trial.
First at FOS
July 22, 2026

LIV Golf Settles $1M Trademark Lawsuit After Stinger GC Rebrand

Tee manufacturer Stinger Golf first sued LIV in June 2025.
Soccer - Copa Libertadores - Final - Atletico Mineiro v Botafogo - Estadio Mas Monumental, Buenos Aires, Argentina - November 30, 2024 Botafogo owner John Textor celebrates with the trophy after winning the Copa Libertadores
July 20, 2026

John Textor Seeks $400M From Michele Kang in Lyon Takeover Suit

Textor claims Kang convinced him to give up control of Lyon while plotting to oust him.