"Jiugongge" is a boundary in the history of China calligraphy, also called "Jiugongge"; It also refers to the layout of mobile phone keyboard, which is relative to the full keyboard. Jiugongge is also a very popular game.
According to legend, Jiugongge was created by Ou Yangxun, a calligrapher in the Tang Dynasty. Ou Yangxun's Inscription of Liquan in Jiucheng Palace is a masterpiece in his later years, which is rigorous, vigorous and complete. It has always been praised as the "first official book" by scholars, with many imitators.
Detailed introduction:
In order to facilitate learners to practice Chinese characters, Ou Yangxun created a grid form of "nine squares" according to the characteristics of Chinese characters. There are nine squares, the middle one is called "Zhonggong", the top three are called "upper three squares" and the bottom three are called "lower three squares".
The left and right squares are called "left palace" and "right palace" respectively, which are used to arrange appropriate parts or to reduce or enlarge the font when practicing calligraphy.
In the Yuan Dynasty, calligrapher Chen Yi further developed the nine palaces structure. He said in "Hanlin Yaoze" that in order to meet the requirements of boundary painting, such as density and stippling, separation of points and points, and uniform distribution, it is more convenient to copy the three palaces more accurately.
According to the structural characteristics and different shapes of Chinese characters, Jiang Ji, a calligrapher in the Qing Dynasty, changed the nine-square grid into four forms in his book Reading Law:
First, the original 998 1 palace, horizontally and vertically removed three palaces, became the 6636 palace.
Second, the left and right lines of the 36 th house are removed to form the 24 th house, which is suitable for writing rectangular characters; Or remove the upper and lower lines of the twelfth house to become the twenty-fourth house, which is suitable for practicing flat characters.
The third and thirty-six rooms are deformed into double-back glyphs to write square characters.
Room 4-36 is transformed into a herringbone. Diagonal lines are drawn from the same vertex of the above two rooms to form a herringbone, which is used to write characters similar to a herringbone.