n: 40 m: 313 packed: 13 density: 0 nodes: 0 solveTime: 3740 buildTime: 60 solved: true
{0,17,23}
{1,5,28}
{2,14,24}
{3,27,33}
{4,18,26}
{6,29,31}
{8,19,30}
{9,21,32}
{10,34,35}
{11,20,38}
{12,36,39}
{13,16,22}
{15,25,37}