What is an ancient game of divination

An ancient game is popular in a game in wei-jin period.An ancient game called five wood again, ancient people use the method of throwing five wooden watch color to judge good or ill luck, the north some ethnic minorities often use this method.It is recorded in the "the Book of Jin • TaoKan biography:" an ancient game, herding pigs play ear."In modern times, the role of an ancient game similar to the dice, has evolved into according to the size of number of throwing to determine method of winning or losing.