n: 40 m: 447 packed: 13 density: 0 nodes: 0 solveTime: 8850 buildTime: 110 solved: true
{0,6,20}
{1,2,3}
{4,14,28}
{5,17,29}
{7,23,30}
{8,31,35}
{9,15,38}
{10,13,34}
{11,12,24}
{16,18,32}
{19,36,37}
{21,33,39}
{22,25,27}