n: 40 m: 437 packed: 13 density: 0 nodes: 0 solveTime: 11380 buildTime: 120 solved: true
{0,16,29}
{1,22,31}
{2,21,34}
{3,37,38}
{4,6,9}
{5,11,23}
{7,8,32}
{10,26,28}
{12,17,27}
{13,15,33}
{18,24,35}
{19,20,30}
{25,36,39}