GAP 4.8.9 installation with standard packages -- copy to your CoCalc project to get it
matrix field=11 rows=10 cols=10 0 1 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 6 6 10 10 9 10 9 10 10 0 10 10 9 9 1 6 1 6 0 10