n: 40 m: 401 packed: 13 density: 0 nodes: 0 solveTime: 8220 buildTime: 90 solved: true
{0,1,28}
{2,19,21}
{3,6,9}
{5,26,27}
{7,13,18}
{8,11,16}
{10,31,32}
{12,20,23}
{14,24,34}
{15,35,38}
{17,22,39}
{25,30,33}
{29,36,37}