Introduction to Immortal Chess: Not far from Couple Peak, there are two peaks facing each other. On the top of the two mountains, there seems to be a person sitting there playing chess leisurely. Legend has it that there is Jizi on one side and Jiang Taigong on the other. Because Jiang Taigong served as a military advisor and helped King Wu destroy the Shang Dynasty, Jizi was dissatisfied with Jiang Taigong's literary and military strategies and wanted to try his skills, so he invited Jiang Taigong to compete here in Go. There is a permanent game here.