n: 30 m: 442 packed: 10 density: 0 nodes: 0 solveTime: 10680 buildTime: 120 solved: true
{0,7,20}
{1,13,23}
{2,5,6}
{3,24,27}
{4,10,16}
{8,14,25}
{9,21,29}
{11,15,17}
{12,18,22}
{19,26,28}