n: 40 m: 218 packed: 13 density: 0 nodes: 0 solveTime: 1130 buildTime: 30 solved: true
{0,8,10}
{1,23,37}
{2,9,13}
{3,14,21}
{4,5,20}
{6,11,29}
{7,12,38}
{15,22,36}
{16,26,33}
{17,34,35}
{18,25,31}
{19,30,32}
{24,27,28}