n: 40 m: 506 packed: 13 density: 0 nodes: 0 solveTime: 35820 buildTime: 150 solved: true
{0,1,11}
{2,6,31}
{3,4,8}
{5,33,36}
{7,13,21}
{9,18,24}
{10,14,17}
{12,29,30}
{15,20,27}
{16,25,28}
{19,37,39}
{22,34,38}
{26,32,35}