n: 40 m: 296 packed: 13 density: 0 nodes: 0 solveTime: 3480 buildTime: 60 solved: true
{0,16,31}
{1,2,20}
{3,12,29}
{4,22,23}
{5,6,24}
{7,17,18}
{8,15,30}
{9,11,35}
{10,19,21}
{13,27,28}
{25,33,36}
{26,34,37}
{32,38,39}