n: 40 m: 740 packed: 13 density: 0 nodes: 0 solveTime: 156770 buildTime: 320 solved: true
{0,8,38}
{1,2,7}
{3,25,28}
{4,5,11}
{6,10,29}
{9,34,39}
{12,14,19}
{15,17,22}
{16,21,33}
{18,23,26}
{20,27,35}
{24,31,36}
{30,32,37}