Morung Express News Dimapur | May 17 With 20 participants having registered, the Sumi Open Chess Championship 2017 began on Wednesday at Tourist Lodge, Dimapur organized by Sumi Chess Association, Nagaland (SCAN). President, SCAN, Hekugha Yepthomi declared the championship open and informed that the game would be played under FIDE norms. There are two categories – Under-17 and open category. The championship will conclude on May 19.