CoCalc -- 3x3magiceven

GAP 4.8.9 installation with standard packages -- copy to your CoCalc project to get it

⁵⁶³⁶¹¹ views

amb_space 9
saturation 3
2 0 -2 -4 0  4  2 0 -2
0 1  2  3 1 -1  0 1  2
0 0  6  8 2 -4 -2 4  4
grading
1 1 1 0 0 0 0 0 0