n: 40 m: 444 packed: 13 density: 0 nodes: 0 solveTime: 17730 buildTime: 110 solved: true
{0,5,28}
{1,2,7}
{3,21,26}
{4,15,31}
{6,25,27}
{8,32,34}
{9,33,39}
{10,20,22}
{11,16,29}
{12,18,35}
{13,23,24}
{14,30,37}
{17,19,36}