Magnus Carlsen will return to compete for the World Classical Chess Championship by December 31, 2027, if Nodirbek Sindarov defeats D. Gukesh in a classical chess match with a score difference of +2 or more.

Magnus Carlsen, the reigning World Champion for a decade, famously relinquished his title in 2023, stating he lacked motivation to defend it against a new challenger unless it was a player from a younger generation. D. Gukesh recently won the Candidates Tournament, earning the right to challenge the current World Champion, while Nodirbek Sindarov is another strong young grandmaster.