n: 30 m: 467 packed: 10 density: 0 nodes: 0 solveTime: 22660 buildTime: 130 solved: true
{0,5,9}
{1,3,4}
{2,11,21}
{6,22,27}
{7,10,23}
{8,12,19}
{13,17,18}
{14,15,28}
{16,20,25}
{24,26,29}