n: 40 m: 617 packed: 13 density: 0 nodes: 0 solveTime: 40410 buildTime: 240 solved: true
{0,5,27}
{1,11,39}
{2,8,9}
{3,4,38}
{6,17,18}
{7,22,35}
{10,28,31}
{12,19,21}
{13,34,36}
{14,25,26}
{15,32,33}
{16,20,24}
{23,29,30}