n: 40 m: 569 packed: 13 density: 0 nodes: 0 solveTime: 25080 buildTime: 190 solved: true
{0,18,37}
{1,16,17}
{2,9,25}
{3,36,38}
{5,34,35}
{6,8,22}
{7,28,33}
{10,12,14}
{11,13,23}
{15,29,30}
{19,26,31}
{20,32,39}
{21,24,27}