What does 1 9 stand for in Nine palace map?

According to tic-tac-toe, ancient astronomers in China divided the Heavenly Palace into nine equal parts: Dry Palace, Dry Palace, Gen Palace, Gong Zhen, Zhong Palace, Gong Xun, Gong Li, Gong Kun and Dui Palace. At night, seven obsidians and stars move from the ground and know the direction and season.

Jiugong is a combination of Luo Shu and gossip the day after tomorrow. Count to five in China Palace and send it to Kun Palace. In order: Yigongkan (North), Ergongkun (Southwest), Sangong Town (East), Sigongxun (Southeast), Wugongzhong (Songkun), Liugonggan (Northwest), Qigongdui (West), Bagonggen (Northeast) and Jiukm (South).

1977, Chinese archaeologists found the plates of the ninth palace of Taiyi in the seventh year of Emperor Wendi (before 173) in the ancient tomb of the Western Han Dynasty in Shuanggudui, Fuyang City, Anhui Province, which were the real objects of the Rubik's Cube of the Han Dynasty in China.

Extended data:

There is a mathematical method for this odd number problem, and a solution can be constructed. It's more troublesome to describe. How to construct the solution:

First, put 1 in the center of the bottom row of the whole matrix. Then fill in 2, 3, 4, 5, 6, 7 in the lower right order. Pay attention to turn the number to the top when touching the bottom, and turn to the left when touching the right. For example, in a 5*5 Rubik's Cube, if you fill in 1 (5,3), you have to fill in 2( 1, 4) and 4(3,1).

In addition, when there is a number below the original number, the number to be filled in should be filled right above the original number. Let's take the 5*5 Rubik's Cube as an example. When 5 is filled with (4,2), its lower right is 1. You can't fill in 6 there, you have to fill in (3,2), which means more than 5. Finally, a special point, the lower right corner, should also fill in the new number above the lower right corner.

Supplement: One person wears nine shoes, three on the left, seven on the right, two on four shoulders, six on eight feet and five in the middle.

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