n: 40 m: 180 packed: 13 density: 0 nodes: 0 solveTime: 15900 buildTime: 30 solved: true
{0,2,11}
{1,26,31}
{3,5,17}
{4,15,36}
{6,13,19}
{7,35,37}
{8,9,20}
{10,25,34}
{12,23,30}
{14,24,27}
{16,29,38}
{18,21,28}
{32,33,39}