The fifth-order Rubik's Cube is to fill in 25 numbers (1-25) in the figure below, so that the sum of the five numbers on each row, column and diagonal is equal.

17 24 1 8 15

23 5 7 14 16

4 6 13 20 22

10 12 19 2 1 3

1 1 18 25 2 9

The arrangement method is—

Yang Huifa: Nine sons are arranged obliquely, changing from top to bottom and from left to right, with four dimensions protruding.

Robopard: The smallest data is filled up to the center, diagonally to the upper right, written down from the upper box, and filled from the right box to the left. The weight of the lower box is the same as that of the right upper line.