Magnus Carlsen was reportedly beaten by a nine-year-old chess prodigy from Bangladesh, Ryan Rashid Mugdha. The extraordinary achievement that occurred in an online chess match has taken the chess world by storm.

The sensational game, which was played in the "bullet" format (where players have only one minute to finish their moves), took place on January 18 on Chess.com. It was then that Mugdha, a third-grader at South Point School in Dhaka, played using the account of his coach, Naim Haque, as he does not yet have his own profile or official chess title. The result meant that Magnus Carlsen's rating dropped by -16.

"He (Ryan Rashid Mugdha) couldn't play (in Bullet Brawn) because he doesn't have a title. So I gave my Chess.com id. He played and beat 5-time world champion and current number 1 chess player in all three formats, Magnus Carlsen," Mugdha's coach Naim was quoted as saying by Bangladeshi website The Business Standard.

"I teach Mugdha chess, and he always loves to play online. I let him use my ID, and later, he suddenly called me, saying he had beaten Carlsen. At first, I couldn't believe it. Then he sent me screenshots and all the game details, and I was amazed," Naim added in a Facebook post.

Mugdha's achievements are remarkable. He is the current Under-10 Junior Champion in Bangladesh and represented his country at the Asian School Chess Championship in Bangkok last December.

Carlsen is yet to comment on the result, but a few theories are doing the rounds on social media, among which one claims that the Norwegian made a mouse slip, a common mistake in online chess that led to the world's best player losing to a nine-year-old using a FIDE Master's account.

On move 20, when Carlsen moved his queen into the path of the white bishop, it led to her capture (20.Qe6).

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