In a historic achievement, 18-year-old Gukesh Dommaraju stunned the reigning champion Ding Liren of China in a nail-biting finale to claim the World Chess Championship title. His triumph in Singapore makes him the youngest world champion in chess history, surpassing Garry Kasparov's record set in 1985.The victory, sealed with a score of 7.5-6.5 after a …