Before revision: 13-year-old Magnus Carlsen formally playing against 35-year-oldIvan Sokolov, 2004 Formal conditions The youngest player to defeat a grandmaster under standard time controls is Ashwath Kaushik, who in February 2024 defeated Jacek Stopa at the age of 8 years, 6 months, and 11 days.
After revision: 13-year-old Magnus Carlsen formally playing against 35-year-old Ivan Sokolov, 2004 Formal conditions The youngest player to defeat a grandmaster under standard time controls is Ashwath Kaushik, who in February 2024 defeated Jacek Stopa at the age of 8 years, 6 months, and 11 days.