The digits 1, 2, 3, 4, 5, 6, 7, 8, and 9 must be put in the depicted square, in such a way that the sums of the numbers in each row, column, and diagonal are equal.











Hint: There is only 1 solution to this problem, when you leave out all rotations and mirror solutions.




























Answer:
2   7   6
9   5   1
4   3   8