World No. 1 Magnus Carlsen says he will play at the World Blitz Championship after initially quitting the chess tournament due to a dress code dispute with organizers.

The player’s shock withdrawal prompted the International Chess Federation to relax a dress code that penalized him for wearing jeans to a New York tournament.

Reigning FIDE World Blitz Champion Magnus Carlsen won his 8th title on Wednesday, 1 January. In a historic feat, Carlsen decided to share the title with his opponent Ian Nepomniachtchi, making them the first twin winners of the competition.