US' 16-year-old Grandmaster Abhimanyu Mishra, who became the youngest Grandmaster to beat a reigning world chess champion by defeating Gukesh D, was born on February 5, 2009 in New Jersey. Abhimanyu became the youngest-ever Grandmaster at the age of 12 years, 4 months and 25 days on June 30, 2021. He began playing chess at the age of two.