The method of using the nine-square grid from 4 to 14 to equal 27 requires the arrangement of the pictures to equal 27. 6, 13, 8 in the first column. The second column is 11, 9, 7. The third column is 10, 5, 12. In this way, regardless of whether it is horizontal addition, vertical addition, or diagonal addition, it is 27.
Nine-Panel Grid was created by Ouyang Xun, a calligrapher in the Tang Dynasty. Ouyang Xun introduced it into calligraphy practice, taking advantage of its structural stability and sense of order. The nine-square grid has three vertical and three horizontal lines, forming nine independent and interdependent units, which are internally regular and interdependent.
Sudoku Jiugongge is a very puzzle game, which helps the brain think. The forms of Jiugongge are ever-changing. The main methods are explained.
Concatenated division method: Find some identical numbers in two rows of three side-by-side nine-square grids, and then use the nine-square grid to find the position of the number in the other row. This method is very suitable for intermediate and advanced Sudoku. . But it will be more difficult to master in the early stage.
Grid patrol method: Find some numbers that appear more frequently in each nine-square grid, and then find the position of the number in the other nine-square grid. This method is generally applied after the serial division method.
Hypothesis method: This method is to randomly fill in a number at a certain position and then deduce it. Although it may eventually produce contradictions and deny the conclusion, it is still more practical in advanced Sudoku.
Exclusive method: This method is slightly more difficult to operate. It is to observe in each row, column or grid. If there is a position that cannot be filled in with other numbers, fill in the remaining numbers and try to calculate whether you can get it. in conclusion.