n: 40 m: 248 packed: 13 density: 0 nodes: 0 solveTime: 810 buildTime: 30 solved: true
{0,19,31}
{1,17,33}
{2,9,29}
{3,8,16}
{4,15,36}
{5,23,24}
{6,22,37}
{7,18,34}
{10,13,30}
{11,14,38}
{12,32,39}
{20,26,28}
{21,27,35}