The final of the “Tongli Cup” 31st Chinese Tianyuan, title match was held in Tongli from April 10th to 13th in 2017. Lian Xiao defeated Chen Yaoye at the 174th move with white, succeeding in the challenge with a total score of 2:0, and won the eighth Tianyuan title. The “Tongli Cup” Chinese Tianyuan, title match, co-sponsored by the Chinese Chess Academy, Xinmin Evening News Agency and the people’s government of Tongli, is an event with the longest history in the field of Chinese professional go. Nowadays, it serves as a model of successful cooperation among parties. The tournament contains four stages, that is, Internet preliminary tournament, main selected tournament, main tournament, and challenge tournament. After these stages, the winner becomes the challenger to face the titleholder of the last session.