n: 40 m: 341 packed: 13 density: 0 nodes: 0 solveTime: 4140 buildTime: 70 solved: true
{0,5,21}
{1,8,31}
{2,30,32}
{3,13,39}
{4,16,37}
{6,26,29}
{7,20,35}
{9,14,33}
{10,17,38}
{11,12,23}
{15,28,34}
{19,22,24}
{25,27,36}