n: 40 m: 196 packed: 13 density: 0 nodes: 0 solveTime: 1210 buildTime: 20 solved: true
{0,21,29}
{1,14,15}
{2,18,32}
{3,9,38}
{4,35,37}
{5,17,39}
{6,23,28}
{7,19,33}
{8,10,26}
{11,16,27}
{12,22,34}
{20,24,36}
{25,30,31}