n: 40 m: 190 packed: 13 density: 0 nodes: 0 solveTime: 2310 buildTime: 20 solved: true
{0,21,26}
{1,13,22}
{2,34,38}
{3,9,37}
{4,6,18}
{5,14,30}
{7,17,31}
{8,16,20}
{10,19,32}
{11,28,35}
{12,33,39}
{15,23,36}
{24,25,29}