n: 30 m: 502 packed: 10 density: 0 nodes: 0 solveTime: 171950 buildTime: 150 solved: true
{0,9,12}
{1,2,5}
{3,17,19}
{4,6,13}
{7,14,22}
{8,10,23}
{11,18,20}
{15,16,21}
{24,25,27}
{26,28,29}