Wikipedia quotes the rules from a book written between 265 and 420 AD:<p><i>Method of play: Two people sit facing each other over a board, and the board is divided into twelve paths, with two ends, and an area called the &quot;water&quot; in the middle. Twelve game pieces are used, which according to the ancient rules are six white and six black. There are also two &quot;fish&quot; pieces, which are placed in the water. The throwing of the dice is done with a jade. The two players take turns to throw the dice and move their pieces. When a piece has been moved to a certain place it is stood up on end, and called an &quot;owl (梟or驍) &quot;. Thereupon it can enter the water and eat a fish, which is also called &quot;pulling a fish&quot;. Every time a player pulls a fish he gets two tokens, and if he pulls two fish in a row he gets three tokens [for the second fish]. If a player has already pulled two fish but does not win it is called double-pulling a pair of fish. When one player wins six tokens the game is won.</i><p><a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Liubo" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Liubo</a>