n: 30 m: 536 packed: 10 density: 0 nodes: 0 solveTime: 20880 buildTime: 180 solved: true
{0,6,19}
{1,2,4}
{3,7,10}
{5,13,16}
{8,26,27}
{9,11,17}
{12,20,25}
{14,15,29}
{18,22,23}
{21,24,28}