NEW YORK: In the Aimchess Rapid on Sunday night, Indian teenager Donnarumma Gukesh made chess history by defeating Magnus Carlsen of Norway to become the sport's youngest world champion.

With the 16-year-victory old's in the Meltwater Champions Chess Tour, Carlsen suffered his second defeat in as many days against one of the bright young players from India. On Saturday, 19-year-old Arjun Erigaisi defeated Carlsen.

What a significant historical day," said International Master Jovanka Houska. Gukesh gave a "simply wonderful, incredible performance." In the Round 9 game, Gukesh's play of 25.Rc7 in what appeared to be a favourable position for Carlsen was the turning point. After Carlsen's queen was put in danger by 26.Qb6!, the champion's response 25...Re8? proved to be a mistake, and Gukesh found himself abruptly in the lead.

Carlsen, who was playing from a log cabin in northern Sweden, thought over his next move for five minutes after realising his error. He was spinning on his chair while shaking his head and making gestures. He was obviously upset with himself. He made a few moves before resigning.

The opening actually went pretty well for Magnus, and he was kind of cruising, according to International Master Lawrence Trent. But this action truly came out of nowhere and was totally unexpected. Trent commented about Carlsen, saying "He's a man who, let's put it this way, he doesn't like to lose so he's going to have to recoup very quickly." The previous record before Gukesh's victory was R. Praggnanandhaa's 39-move victory over Carlsen in the Airthings Masters in February. Gukesh is 16 years, 4 months, and 20 days old. Pragg was 16 years, 6 months, and 10 days old and is not participating in this game.

Gukesh wasn't pleased with his own performance, despite the victory. Although defeating Magnus is always exceptional, he admitted that he wasn't particularly proud of his performance in that game. When told he was the youngest player to defeat Carlsen as world champion, he did nonetheless smile.

As luck would have it, however, the high-flying Polish player Jan-Krzysztof Duda defeated Gukesh in the following game, sending the latter back to earth after finishing the day at the top of the scoreboard, in just 42 moves.

A different wonderkid, the 18-year-old Uzbek World Rapid Champion Nodirbek Abdusattorov, who had led the first two days, was Carlsen's opponent in Round 11. It resulted in a draw after a wild game that IM Trent referred to as "alien chess."

It took till Carlsen's final game of the day to record his first victory over the Swede Nils Grandelius after a defeat and two draws. By his own lofty standards, Carlsen, who finished with 21/36 points, is horribly out of shape.

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