n: 40 m: 197 packed: 13 density: 0 nodes: 0 solveTime: 330 buildTime: 30 solved: true
{0,10,23}
{1,26,35}
{2,9,34}
{3,8,39}
{4,5,7}
{6,14,31}
{11,19,38}
{12,17,33}
{13,28,36}
{15,27,32}
{16,25,30}
{18,24,37}
{20,21,22}