World Record Title: The world's youngest chess World Series semi-finalist is Cher Hao
World Record Holder: Cher Hao
World Record Field: Go
World Record Rules: Go World Series semi-finalist, the world's youngest.
World Record Number: 20120800042
World Record Validity Period: to record was broken up.
World Record Witness: Carrying the Flag of World Records certified teacher 001
World Records Source: World record database of Carrying the Flag
World Record Awarding Certificate Date: August 31, 2012
World Record Details:
         The youngest world chess World Series four players is Xie ErHao. verified in Hong Kong on 31  August 2012.