n: 40 m: 429 packed: 13 density: 0 nodes: 0 solveTime: 4270 buildTime: 110 solved: true
{0,1,8}
{2,12,39}
{3,34,36}
{4,6,19}
{5,11,20}
{7,31,37}
{9,14,30}
{10,21,26}
{13,22,23}
{15,32,38}
{16,18,35}
{17,25,29}
{24,27,28}