n: 30 m: 270 packed: 10 density: 0 nodes: 0 solveTime: 2830 buildTime: 40 solved: true
{0,5,17}
{1,18,28}
{2,3,4}
{6,7,26}
{8,11,12}
{9,14,15}
{10,21,27}
{13,20,22}
{16,25,29}
{19,23,24}