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 long-standing feud between Hans Niemann and Magnus Carlsen escalated once again, as the American Grandmaster launched a personal attack on the Norwegian chess icon via social media.

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

Magnus Carlsen faced scathing criticism from Hans Niemann as the FIDE-Freestyle Chess battle keeps escalating leading to a chess war.

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

Arkady Dvorkovich is under fire after talks over an agreement about the new series fell through. Read more at straitstimes.com.

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.