World champion attends 1 vs. 15 chess event at UN headquarters

Oslo Mayor Marianne Borgen (C) during the "Magnus Plays the World" chess competition at the United Nations headquarters in New York City, the United States, May 10, 2018. World Chess Champion Magnus Carlsen of Norway attended a 1 vs. 15 chess event at the UN headquarters on Thursday. (Xinhua/Li Muzi)