I solved it. The matrix i posted was not related to the "True should equal False" message. I forgot to check, if vertical and horizontal lines are correct.

It says True should equal False, but i am getting False
[[1, 3, 2, 5, 7, 9, 4, 6, 8],
[4, 9, 8, 2, 6, 0, 3, 7, 5],
[7, 0, 6, 3, 8, 0, 2, 1, 9],
[6, 4, 3, 1, 5, 0, 7, 9, 2],
[5, 2, 1, 7, 9, 0, 8, 4, 6],
[9, 8, 0, 4, 2, 6, 5, 3, 1],
[2, 1, 4, 9, 3, 5, 6, 8, 7],
[3, 6, 0, 8, 1, 7, 9, 2, 4],
[8, 7, 0, 6, 4, 2, 1, 3, 5]]
False