How to fill in 2, 3, 4, 5, 6, 7, 8, 9 and 10 in the nine palace space, so that the sum of the three numbers in each horizontal, vertical and oblique row is equal to 18

Method: if it is a continuous series of numbers or a series of numbers with equal difference, put the smallest number in the middle of the first line, and then fill in the next number to the left or right in turn, and then down, take the right as an example, fill in 2 in the middle of the first line, fill in 3 for the right, fill in 4 for the right, fill in 5 for the 4, fill in 6 for the center, and fill in the upper left corner

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