n: 40 m: 480 packed: 13 density: 0 nodes: 0 solveTime: 13150 buildTime: 140 solved: true
{0,33,35}
{1,31,37}
{2,3,7}
{4,5,21}
{6,27,39}
{8,22,34}
{9,13,18}
{10,14,36}
{11,19,26}
{12,15,17}
{20,29,38}
{23,28,30}
{24,25,32}