What does Yunfu Jiujin refer to?

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Chinese title: Exploring Traditional Chinese Mind Games: Easily Draw a Nine-Square Grid Map of China If you're curious about the Chinese nine-square grid map but don't know where to start, don't worry, here's a treasure trove of drawing for you, taking you to experience this ancient and mysterious wisdom! 1. Understand the basic rules Before drawing a map of China's nine-square grid, you need to understand its basic rules. The Chinese nine-square grid, also known as the "magic ball grid", is a kind of digital matrix that fills in the nine numbers from 1 to 9 so that the sum of the numbers in each row, column and diagonal is 15. Second, the steps are explained in detail 1. Number arrangement: Determine the order in which the numbers are placed, with different numbers in each row, column, and diagonal. Adjust the relationship between numbers by presetting positions, e.g. clockwise or counterclockwise to ensure that there are no repetitions. 2. Grid distribution: Distribute the numbers in the shape of "Z" or "M" in three nine-square grids. In this process, we should always pay attention to the demand and balance of the quantity that echoes up and down. 3. Adjust gradually: If the logic doesn't work, you have to start all over again. It is difficult for beginners, so it is recommended to imitate it from the template. 3. Skill sharing 1. Memorize the number family: Can't memorize the ninety-nine multiplication table? Mastering the relationship between 1 and 9 is a fundamental preparation. 2. Time forensics: If you can't understand the principle of the nine-square grid, you may wish to spend more time doing daily homework exercises. Remember the phrase "a lot of exposure is familiarity". 3. Graphic assistance: simplify the grid into a small tool diagram (ukulele type, X-shaped it) to assist in the accumulation effect of decreasing numbers. 4. Interactive problem solving: Ask the players around you to share the problems and breakthrough methods they have encountered in recent years, and whether there are better answers. Fourth, promote welfare In order to provide more modern learning tools and convenient experience for more partners who are trapped in learning China's Jiugongge, this event is absolutely profitable in addition to talking about this skill