n: 30 m: 321 packed: 10 density: 0 nodes: 0 solveTime: 3060 buildTime: 60 solved: true
{0,15,29}
{1,5,22}
{2,6,11}
{3,10,21}
{4,20,27}
{7,12,18}
{8,16,23}
{9,26,28}
{13,17,19}
{14,24,25}