n: 40 m: 103 packed: 13 density: 0 nodes: 0 solveTime: 700 buildTime: 10 solved: true
{0,5,17}
{1,28,31}
{2,11,34}
{3,32,35}
{4,13,38}
{6,27,33}
{7,10,18}
{8,23,36}
{9,21,37}
{12,16,39}
{14,15,22}
{19,25,29}
{20,24,30}