n: 40 m: 389 packed: 13 density: 0 nodes: 0 solveTime: 9220 buildTime: 90 solved: true
{0,2,17}
{1,33,37}
{4,21,30}
{5,6,7}
{8,20,38}
{9,10,12}
{11,14,28}
{13,15,35}
{16,24,36}
{18,27,39}
{19,26,31}
{22,23,29}
{25,32,34}