 The later versions of the story that identify two elders playing "Go" may also be influenced by the motif of immortals playing "Go" in other stories, such as the tale that appeared in Gan Bao's 4th-century compilation of supernatural stories "In Search of the Supernatural", in which the gods Bei Dou (the Big Dipper) and Nan Dou (the corresponding stars in Sagittarius) were playing "Go", when the youth Yan Chao approached them to ask for a longer life.A poem by Tang Dynasty poet Meng Jiao called "The Stone Bridge of Lanke Mountain" referenced the legend