Choi Cheol-han (Korean: 최철한) is a South Korean professional Go player. He is the fourth youngest to become a professional Go player in South Korean history behind Cho Hun-hyun, Lee Chang-ho and Cho Hye-yeon. His nickname is "The Viper".
Biography
Choi became a professional when he was 12 years old. He began playing Go at the age of seven, studying with Lee Sedol in Kweon Kab-yong's academy in Seoul. At that time, Choi was considered the next Lee Sedol. ==Promotion record==