Lacking motivation, Carlsen not to defend title at 2023 World Chess

Carlsen said he had met with representatives from The International Chess Federation (FIDE) to inform them of his decision in Madrid in connection to the Candidates Tournament -- which decides who gets a chance to challenge the world champion.

Chess: Magnus Carlsen: Fifteen world titles and two major problems, Sports

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Five-time World Chess Champion Magnus Carlsen will NOT defend his title « Euro Weekly News

Magnus Carlsen Not To Defend Title At 2023 World Chess Championship

Magnus Carlsen will not defend World Chess Championship title in 2023

Magnus Carlsen to give up World Championship title

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Magnus Carlsen losing motivation to defend world title understandable' - Hindustan Times