_2_d4_10 := [ 
[1,1,1,0,0,0,0,0,1,2],
[1,1,0,1,1,1,1,1,0,1],
[2,2,0,0,0,0,0,0,0,0],
[2,0,2,2,0,0,0,0,0,0],
[0,0,0,2,2,0,0,0,0,0],
[0,0,0,2,0,2,0,0,0,0],
[0,0,0,2,0,0,2,0,0,0],
[0,0,0,2,0,0,0,2,0,0]
];