Young Indian Grandmaster Leon Luke Mendonca emerged victorious in the 2nd Kumania GM chess tournament in Kisújszállás, Hungary, with a score of 6.5 points from nine rounds. The 15-year-old Goa player, who became India's 67th Grandmaster in December last, remained unbeaten and finished with four wins and five draws in the tournament, which concluded on Thursday. "Feeling happy to retain …