n: 40 m: 168 packed: 13 density: 0 nodes: 0 solveTime: 350 buildTime: 20 solved: true
{0,12,14}
{1,21,30}
{2,16,25}
{3,36,38}
{4,15,35}
{5,9,28}
{6,19,39}
{7,11,37}
{8,13,17}
{10,20,22}
{23,24,31}
{26,27,32}
{29,33,34}