n: 40 m: 256 packed: 13 density: 0 nodes: 0 solveTime: 1260 buildTime: 40 solved: true
{0,21,31}
{1,36,39}
{2,19,20}
{3,15,30}
{4,14,22}
{5,11,18}
{6,26,34}
{7,13,16}
{8,9,12}
{10,24,28}
{17,25,27}
{23,33,37}
{29,32,38}