n: 30 m: 122 packed: 10 density: 0 nodes: 0 solveTime: 150 buildTime: 10 solved: true
{0,12,20}
{1,4,10}
{2,3,18}
{5,25,28}
{6,9,13}
{7,19,29}
{8,21,24}
{11,16,17}
{14,26,27}
{15,22,23}