He learnt the rules of chess when he was two and a half years old. He became the youngest national expert at the age of 7 years and 6 months. He became the youngest National Master in the US at the age of nine years and two months. In late 2019, he beat R. Praggnanandhaa’s record of becoming the youngest IM in the world at the age of 10 years, 9 months and 3 days. Meet Abhimanyu Mishra, the youngster who lives in New Jersey, USA……..
https://chessbase.in/news/Abhimanyu-Mishra-s-road-to-becoming-a-GM