100 doors revenge level 40, in mathematical is call magic matrix 3 x 3, objective is you need sort of number 1, 2, 3, 4, 5, 6, 7, 8, and 9 until every sum of three number (columns, row, and diagonal) has result 15

you can see the solution on the picture
this is the matrix
4 + 9 + 2
+ + +
3 + 5 + 7
+ + +
8 + 1 + 6
