n: 40 m: 238 packed: 13 density: 0 nodes: 0 solveTime: 1180 buildTime: 40 solved: true
{0,6,13}
{1,28,32}
{2,10,36}
{3,20,35}
{4,5,17}
{7,14,26}
{8,30,34}
{9,12,33}
{11,22,29}
{15,24,38}
{16,19,23}
{18,27,39}
{21,31,37}