Freestyle Chess Grand Slam tour boss Jan Henric Buettner and all-time great Magnus Carlsen have called on International Chess Federation (FIDE) president Arkady Dvorkovich to resign after talks over an agreement about the new series fell through.

World No. 1 Magnus Carlsen shared a text that FIDE chief Dvorkovich had sent to his father, Henrik, before demanding the Russian's resignation.

“The organizers of the “Freestyle Chess Tour” fully deleted from its Regulations the reference to the “World Championship” title. Following this change in the regulations, players wishing to participate in the 2025 “Freestyle Chess Tour” are no longer required to sign the waiver note,” said the updated FIDE statement.

Magnus Carlsen, a 34-year-old Norwegian, is among the greatest chess players of all time.

Further talks with Fide futile, says Freestyle Chess promoter Jan Buettner; Fide says Freestyle Chess refused to acknowledge its status as sole regulator of the World Championships

Disagreement over right to regulate any 'World Championship' and waiver for players to appear in unsanctioned league

Fide has been unequivocal about not wanting to part with its sole authority over the ‘World Championship’ title

The International Chess Federation (FIDE) issued a comprehensive statement on Monday following the news that no agreement had been reached between FIDE and Freestyle Chess over the use of the “World Championship.