n: 40 m: 307 packed: 13 density: 0 nodes: 0 solveTime: 3990 buildTime: 50 solved: true
{0,17,27}
{1,12,25}
{2,5,13}
{3,7,21}
{4,35,36}
{6,30,31}
{8,28,34}
{9,14,39}
{10,26,29}
{11,32,33}
{15,18,22}
{16,20,37}
{19,23,24}