n: 40 m: 228 packed: 13 density: 0 nodes: 0 solveTime: 1290 buildTime: 30 solved: true
{0,20,28}
{1,13,17}
{2,8,21}
{3,33,39}
{4,30,38}
{5,18,27}
{6,15,31}
{7,14,23}
{9,32,34}
{10,16,29}
{11,22,24}
{19,25,26}
{35,36,37}