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Michael Isakov of Harvard University competes during the 2019 world prestigious university chess invitational tournament in north China's Tianjin, Nov. 26, 2019. (Xinhua/Li Ran)
Michael Isakov of Harvard University competes during the 2019 world prestigious university chess invitational tournament in north China's Tianjin, Nov. 26, 2019. (Xinhua/Li Ran)