n: 40 m: 255 packed: 13 density: 0 nodes: 0 solveTime: 1860 buildTime: 40 solved: true
{0,13,21}
{1,9,28}
{2,18,22}
{3,10,14}
{4,6,38}
{5,20,36}
{7,26,31}
{8,17,39}
{11,16,37}
{12,29,30}
{19,32,33}
{23,27,35}
{24,25,34}