n: 40 m: 423 packed: 13 density: 0 nodes: 0 solveTime: 12690 buildTime: 110 solved: true
{0,14,34}
{1,12,32}
{2,20,36}
{3,19,38}
{4,8,9}
{5,26,31}
{6,13,18}
{7,22,24}
{10,23,28}
{11,15,16}
{17,27,35}
{21,37,39}
{29,30,33}