n: 40 m: 429 packed: 13 density: 0 nodes: 0 solveTime: 9610 buildTime: 110 solved: true
{0,1,18}
{2,3,6}
{4,11,12}
{5,13,26}
{7,22,25}
{8,38,39}
{9,27,36}
{10,31,33}
{14,19,30}
{15,28,32}
{16,17,34}
{20,21,24}
{29,35,37}