Kunal's victory over Brunello came out of an irregular opening with white pieces as the Indian showed a lot of maturity and trapped his opponent's queen as early as on the 19th move.
It was a day of big upsets as many Grandmasters found the going tough. Apart from Brunello, Grandmaster Eldar Gasanov of Ukraine, Duc Hoa Nguyen of Vietnam, Ziaur Rahman of Bangladesh and Vladimir Lazarev of France bit the dust against their respective Indian opponents.
M G Gahan made merry at the expense of Nguyen who was shocked by the Karnataka player in a fine display of positional chess.
Abhishek Kelkar and Nishant Malhotra played an identical Slav defense with black pieces and the former defeated Bangladesh's Rahman, a winner of many Indian international tournaments. Malhotra was also seen at his best in tackling the vast experience of Lazarev who was outdone in the middle game.
Among other Indians, Delhi's Aradhya Garg caused an upset defeating V A V Rajesh while Delhi's Grandmaster Sahaj Grover accounted for B S Shivananda after a hard-fought game.