n: 30 m: 237 packed: 10 density: 0 nodes: 0 solveTime: 780 buildTime: 40 solved: true
{0,1,20}
{2,7,13}
{3,16,17}
{4,9,26}
{5,10,22}
{6,21,28}
{8,19,24}
{11,12,29}
{14,23,27}
{15,18,25}