n: 40 m: 336 packed: 13 density: 0 nodes: 0 solveTime: 2930 buildTime: 70 solved: true
{0,5,11}
{2,10,14}
{3,18,37}
{4,8,35}
{6,32,38}
{7,21,22}
{9,19,23}
{12,24,26}
{13,28,31}
{15,25,29}
{16,17,20}
{27,30,36}
{33,34,39}