16-year old Indian grandmaster Donnarumma Gukesh made chess history in the Aimchess Rapid, becoming the youngest player to beat Norway's Magnus Carlsen as world champion. The 16-year-old's win was Carlsen's second loss in two days against one of India's talented teenagers in the Meltwater Champions Chess Tour. Carlsen went down on Saturday to 19-year-old Arjun Erigaisi.