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.

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

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

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 International Chess Federation (FIDE) reiterated that no agreement between the sport’s global body and the Freestyle Chess Tour had been reached regarding the use of the ‘World Championship’ term.

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

The ongoing dispute between the international chess federation (FIDE) and Magnus Carlsen escalated when the governing body hit out at the Freestyle Chess Players Club, which is co-owned by the Norwegian great,

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.

Chess Grandmaster Magnus Carlsen has called for FIDE President Arkady Dvorkovich to resign due to coercive tactics and unfulfilled promises. The disagreement stems from the collapsed talks between FIDE and the Freestyle Tour,