n: 40 m: 646 packed: 13 density: 0 nodes: 0 solveTime: 167430 buildTime: 240 solved: true
{0,10,31}
{1,7,12}
{2,3,9}
{4,34,37}
{5,8,27}
{6,14,21}
{11,26,38}
{13,17,32}
{15,28,39}
{16,18,36}
{19,23,29}
{20,22,25}
{30,33,35}