n: 30 m: 446 packed: 10 density: 0 nodes: 0 solveTime: 6180 buildTime: 120 solved: true
{0,2,4}
{1,9,12}
{3,5,15}
{6,11,14}
{7,20,28}
{8,23,24}
{10,17,22}
{13,21,25}
{16,19,29}
{18,26,27}