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.

The controversial saga involving FIDE and the Freestyle Tour appeared to be over after International Chess Federation president Arkady Dvorkovich announced that the players would not be required to sign a waiver.

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

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.

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

FIDE said that the talks had fallen through due to organisers of the Freestyle Chess Tour refusing to "acknowledge FIDE's status as the sole regulator of World Chess Championships and its authority to award a World Championship title".

Viswanathan Anand has pulled out from the Freestyle Chess Grand Slam Tour. His new role as FIDE Vice President and tensions with Magnus Carlsen influe

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

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,