n: 40 m: 520 packed: 13 density: 0 nodes: 0 solveTime: 9730 buildTime: 160 solved: true
{0,27,28}
{1,2,4}
{3,30,31}
{5,29,32}
{6,8,10}
{7,11,12}
{9,14,20}
{13,25,35}
{15,17,18}
{16,23,38}
{19,22,34}
{21,33,36}
{24,26,39}