Mamallapuram: Young Indian Grandmaster D Gukesh caused a biggest upset of the Round 5 at the 44th Chess Olympiad by defeating former World Championship Challenger Alexei Shirov as India B shocked Spain by 2.5-1.5 score in Mamallapuram, Tamil Nadu on Tuesday. Exhibiting a brilliant gameplay, Gukesh not only extended his unbeaten run at the prestigious […]