n: 40 m: 401 packed: 13 density: 0 nodes: 0 solveTime: 5330 buildTime: 90 solved: true
{0,26,34}
{1,19,37}
{2,5,8}
{3,13,22}
{4,17,23}
{6,7,24}
{9,28,29}
{10,27,36}
{11,30,31}
{12,15,38}
{14,20,35}
{16,32,33}
{18,25,39}