n: 40 m: 174 packed: 13 density: 0 nodes: 0 solveTime: 930 buildTime: 20 solved: true
{0,10,23}
{1,9,31}
{2,38,39}
{3,8,11}
{4,14,37}
{6,12,35}
{7,20,24}
{13,27,28}
{15,22,32}
{16,30,33}
{17,25,36}
{18,21,29}
{19,26,34}