n: 40 m: 388 packed: 13 density: 0 nodes: 0 solveTime: 4530 buildTime: 80 solved: true
{0,9,17}
{1,29,36}
{2,5,25}
{3,10,18}
{4,19,21}
{6,11,33}
{7,27,28}
{8,22,26}
{12,14,20}
{13,24,39}
{15,16,38}
{23,31,37}
{32,34,35}