Lü Fan
The seventh section (部袠篇弟七) discusses the classification of Go diagrams into four categories: famous games; cunning techniques; Ko fights and seki; and life and death shapes. It mentions "13 diagrams of Han Dynasty Go games" and "24 diagrams of Eastern Wu Go games", which suggest that there was once a collection of early Go games, which the only surviving example of is a diagram of a game reputedly played between Sun Ce (175–200) and Lü Fan (died 228).