Type board

In ancient China, it was a tool to calculate the calendar, or it was used in the form of occupation. Shi Zhan can be divided into three types: Dunga, Taiyi and Liu Ren.

1. For example, the six-ring disk is divided into two parts. The ceiling is round and the venue is square. It is painted with the stars and directions of the Big Dipper and the twenty-eight nights, and engraved with 182 dots, representing a Sunday of 365 1/4 degrees.

The square disk used for intense occupation consists of the "look" symbolizing the sky and the "Yu" symbolizing the earth. There are ten marks, twelve marks and December marks on the CD. There are eight diagrams, ten diagrams and twelve diagrams on the square board. In actual divination, the disks are overlapped on a square disk and rotated for divination.

2. Taiyi disk is similar to Liu Renpan and is also round. The site is bounded by Taiyi Jiugong, and Taiyi moves forward according to the number of Luo Shu.

3. The escape deck is different from the first two boards. It is divided into four parts: heaven, earth, man and god. The eight diagrams, the heavenly stems, the Ba Shen, the eight gates and the nine planets are arranged as a frame, and their positions are broken by the overlapping pattern of four plates.