n: 40 m: 258 packed: 13 density: 0 nodes: 0 solveTime: 2940 buildTime: 40 solved: true
{0,19,38}
{1,3,4}
{2,6,7}
{5,14,27}
{8,9,12}
{10,31,32}
{11,21,39}
{13,34,36}
{15,28,29}
{16,23,26}
{17,18,24}
{20,22,35}
{25,33,37}