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