n: 40 m: 202 packed: 13 density: 0 nodes: 0 solveTime: 660 buildTime: 30 solved: true
{0,13,25}
{1,18,23}
{2,6,21}
{3,16,24}
{4,22,37}
{5,28,31}
{7,9,38}
{8,14,35}
{10,33,34}
{11,15,29}
{12,30,39}
{17,27,36}
{20,26,32}