n: 40 m: 281 packed: 13 density: 0 nodes: 0 solveTime: 1890 buildTime: 50 solved: true
{0,8,16}
{1,7,37}
{2,21,36}
{3,18,25}
{4,29,35}
{5,9,24}
{6,19,26}
{10,13,14}
{11,27,30}
{12,22,39}
{15,31,34}
{17,20,28}
{23,33,38}