carlsen: Lacking motivation, Carlsen not to defend title at 2023 World Chess Championship - The Economic Times

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.

Magnus Carlsen will not defend his World Chess Championship title in 2023, Magnus Carlsen

Carlsen Takes A Tuesday Warming Up For World Cup

Ding Liren succeeds Carlsen as world chess champion with gutsy playoff win – The Irish Times

Magnus Carlsen wins tournament as he makes return to chess without world champion title

World chess champion won't defend title because he 'does not particularly like it

Carlsen Wins 3rd Title At 2023 Champions Chess Tour Finals

Magnus Carlsen - Wikipedia

Magnus Carlsen plays chess far better than anyone in history, according to science

World Chess Championship: Ding Liren, world chess champion: 'I remembered Camus: 'If you can't win, you have to resist'', Sports