n: 30 m: 555 packed: 10 density: 0 nodes: 0 solveTime: 18510 buildTime: 180 solved: true
{0,2,4}
{1,10,21}
{3,5,12}
{6,7,8}
{9,23,27}
{11,28,29}
{13,19,22}
{14,18,26}
{15,17,20}
{16,24,25}