n: 40 m: 495 packed: 13 density: 0 nodes: 0 solveTime: 16870 buildTime: 140 solved: true
{0,14,28}
{1,3,7}
{2,11,15}
{4,17,22}
{5,30,36}
{6,13,34}
{8,10,12}
{9,23,32}
{16,29,35}
{19,21,26}
{20,33,37}
{24,25,39}
{27,31,38}