n: 40 m: 277 packed: 13 density: 0 nodes: 0 solveTime: 4400 buildTime: 40 solved: true
{0,8,16}
{1,14,20}
{2,17,24}
{3,5,21}
{4,9,13}
{6,7,19}
{10,26,29}
{12,18,22}
{15,23,36}
{25,28,38}
{27,31,33}
{30,35,37}
{32,34,39}