n: 40 m: 354 packed: 13 density: 0 nodes: 0 solveTime: 5520 buildTime: 80 solved: true
{0,28,30}
{1,3,38}
{2,5,8}
{4,19,39}
{6,24,36}
{7,25,31}
{9,33,34}
{10,14,21}
{11,32,37}
{12,17,35}
{13,15,27}
{16,22,26}
{18,23,29}