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.

The feud saw FIDE on one side and prominent players such as Magnus Carlsen on the other. Why was the chess world in turmoil in recent weeks and what has changed now? We explain.

World No.1 Magnus Carlsen has accused FIDE of coercion and broken promises after its dispute with Freestyle Chess escalated. The feud centers on FIDE's opposition to Freestyle's use of the "World Championship" title.

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

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

Five-time World Chess champion, Magnus Carlsen has won the first-ever Freestyle Friday tournament on Chess.com. The Norwegian grandmaster was challenged by some of the best players in the world including his long-time rival Hans Niemann, world number two Hikaru Nakamura, and Ian Nepomniachtchi.

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.