n: 40 m: 455 packed: 13 density: 0 nodes: 0 solveTime: 9940 buildTime: 120 solved: true
{0,2,6}
{1,11,14}
{3,5,9}
{7,23,27}
{8,20,31}
{10,21,32}
{12,25,29}
{13,22,24}
{15,19,39}
{16,34,38}
{17,18,30}
{26,28,35}
{33,36,37}