The ancient Chinese text The Bamboo Annals, published around 300 BC, details the events in Chinese history–or mythology–that transpired between around 2700 BC to the time of the text’s publication. Included in the Annals is the story of the legendary Emperor Yao. Yao was a patient and wise emperor, beloved by his constituents. Unfortunately, his talents were not bestowed upon his son. Danzhu, in contrast with his father, was petty and capricious. He was prone to profligacy. As legend has it, Yao invented the game of Go to instill good values into his son. He insisted that the lessons of Go might carry over to real life.
Danzhu took to the game; he even became a good player. But his attitudes never changed. He rejected the notion that a mere game could teach him how to live. Eventually, a weary and crestfallen Yao abdicated the throne, and gave it to Shun, his trusty advisor, instead of his son. Danzhu was furious. He began concocting a plan to kill his father.