This legend originated during the Jin Dynasty(265-420) saying that a woodcutter named  Wang Zhi found two lads play the game of go while he cut firewood at Shishi Mountain. Wang sat down and watched them how to play. Before one round was completed, one of the lads reminded Wang that his axe got rusted. Wang then left them but found dozens of years had passed when he got back to the village where he lived. 

From then on, the mountain was also named Lanke Mountain as Lanke means ‘rusted axe’ in Chinese. The phrase ‘Lanke’ also refers to the game of go because of the legend.