n: 40 m: 257 packed: 13 density: 0 nodes: 0 solveTime: 1260 buildTime: 40 solved: true
{0,33,38}
{1,36,39}
{2,25,26}
{3,10,12}
{4,8,17}
{5,21,29}
{6,24,31}
{7,9,23}
{11,16,37}
{14,30,35}
{15,19,27}
{18,22,28}
{20,32,34}