n: 40 m: 423 packed: 13 density: 0 nodes: 0 solveTime: 5350 buildTime: 110 solved: true
{0,21,36}
{1,28,39}
{2,3,30}
{5,10,14}
{6,9,20}
{7,11,24}
{8,25,31}
{12,16,29}
{13,22,27}
{15,19,26}
{17,18,35}
{23,33,37}
{32,34,38}