n: 30 m: 317 packed: 10 density: 0 nodes: 0 solveTime: 3180 buildTime: 60 solved: true
{0,4,7}
{1,10,19}
{2,3,20}
{5,6,24}
{8,9,27}
{11,18,23}
{12,25,29}
{13,15,26}
{14,16,17}
{21,22,28}