Lee Chang-ho is a South Korean professional Go player of 9-dan rank. Considered to be one of the greatest Go players of all time, Lee was ranked #1 in the world in Go ELO rankings from 1991 to 2006.

Yuta Iyama Kisei, Honinbo, Meijin is a Japanese professional Go player. In April 2016, he became the first player in Japanese history to hold all seven major titles simultaneously. In January 2018, Iy