After a loss to Adhiban yesterday, Nihal was paired against Konstantin Kavutskiy of U.S.A in the fifth round of Chess.com Isle of Man, Douglas.
According to his bio, IM Kostya Kavutskiy is a professional chess player, author, and coach currently residing in Mountain View, California. His first book, Modernized: The Open Sicilian, was published in February 2015.
Kostya chose Nimzo-Indian Opening: 6.g3 setup. The fight was mostly in the center until Nihal began to slyly advance his pawns on Kingside. The grueling 6 hours of play (for the second consecutive day!) took a toll on Nihal as he missed to grab a pawn with 31..Rxc4, in immense time-trouble. Kostya swiftly defended the c4 pawn and Nihal’s attack on the Kingside began to collapse.
This oversight dearly caused Nihal to resign on move 72. Indeed, a heartbreaking loss in the toughest Open tournament in the world.