Is Tian San Qi the Book of Changes?

No. From six people. There are different versions of the exposition of the three strange nobles, and because Taoist magic appeared earlier, it only respected B, C and B. Later, the technique of six benevolence appeared, adding A, B, G and nonyl, which were arranged in Jiugong the day after tomorrow, with A, B and G at the top, nonyl in the middle and B, C and D at the bottom. This is the four-column (eight-character) divination technique developed later: "Tiansan.