n: 40 m: 290 packed: 13 density: 0 nodes: 0 solveTime: 4700 buildTime: 50 solved: true
{0,15,18}
{1,29,37}
{2,23,26}
{3,13,34}
{4,12,31}
{5,20,22}
{6,24,35}
{7,27,36}
{9,21,32}
{10,17,33}
{11,19,30}
{14,28,39}
{16,25,38}