The method and steps of filling in and deriving numbers for Jiugongge Sudoku are as follows.
1. Understand the pictures and numerical information provided in the question as follows;
2. D1 of the second small square should be filled with the number 7, because column E 7 has appeared in the fifth small square of column F, 7 has appeared in the eighth small square of column F, and 7 has appeared in the third small square of the third horizontal row, so fill in D1 with 7, as follows Picture:
3. According to the same method and idea as above, C5 in the fourth small square should be filled with the number 1, as shown below:
4. According to the method and idea of ??step 2 , B2 of the first small square should be filled with 7, as shown below:
5. According to the method and idea of ??step 2, fill in the numbers 9 and 1 in the second and eighth small squares. , as shown below:
6. The next step is to use the missing number comparison method. 7 numbers have been found in the first horizontal row, and the remaining numbers are 3, 4, and 8, because 3 has appeared in column C. and 8, so C1 should be filled with the number 4, and then follow the second step method, fill in 4 in A9, fill in 4 in E8, and based on the conditions of ***9 different numbers in the small square, you can judge that F9 is 6 .. As shown below:
7. According to the missing number comparison method, fill in the numbers 4, 8, and 2 in column D. According to the method and idea of ??the second step, fill in the numbers in the first small square. 2, 9, fill in 6, 5 in column C, and the missing number 8 in the seventh small square, as shown below:
8. According to the above method, fill in the numbers in the relevant positions in the picture below,
9. According to the above method, fill in the numbers in the relevant positions in the picture below.
10. The Jiugongge Sudoku game is completed. The numbers in the horizontal and vertical rows are 1-9 respectively. The numbers in each small square are 1-9.