n: 40 m: 268 packed: 13 density: 0 nodes: 0 solveTime: 3800 buildTime: 40 solved: true
{0,6,9}
{1,8,21}
{2,10,20}
{3,24,37}
{4,11,17}
{5,7,29}
{13,27,38}
{14,30,34}
{15,19,39}
{16,26,31}
{18,28,36}
{22,25,35}
{23,32,33}