n: 40 m: 342 packed: 13 density: 0 nodes: 0 solveTime: 6500 buildTime: 70 solved: true
{0,9,29}
{1,27,28}
{2,12,39}
{3,13,34}
{4,11,20}
{5,15,21}
{6,10,33}
{7,16,25}
{14,23,31}
{17,24,36}
{18,19,22}
{26,32,35}
{30,37,38}