n: 40 m: 325 packed: 13 density: 0 nodes: 0 solveTime: 3120 buildTime: 60 solved: true
{0,3,38}
{1,18,28}
{2,5,6}
{4,26,31}
{7,22,27}
{8,34,37}
{9,11,16}
{10,14,17}
{13,20,24}
{15,19,35}
{21,33,39}
{23,25,30}
{29,32,36}