n: 40 m: 543 packed: 13 density: 0 nodes: 0 solveTime: 43390 buildTime: 170 solved: true
{0,9,39}
{1,11,33}
{2,16,34}
{3,7,15}
{4,25,29}
{5,26,31}
{6,12,14}
{10,18,20}
{13,27,35}
{17,37,38}
{19,21,32}
{22,24,30}
{23,28,36}