Answer
In October 2008, American chess player Wesley So became the youngest player to pass a 2600 Elo rating, which is a measure of a chess player's strength. So was 14 years old and 10 months old when he achieved this feat. He surpassed the previous record holder, Vladimir Kramnik, who was 15 years and 5 months old when he reached 2600 Elo in 1992.