n: 30 m: 404 packed: 10 density: 0 nodes: 0 solveTime: 3580 buildTime: 90 solved: true
{0,19,28}
{1,11,12}
{2,9,20}
{3,23,25}
{4,5,6}
{7,10,18}
{8,13,15}
{14,21,22}
{16,26,27}
{17,24,29}