n: 40 m: 467 packed: 13 density: 0 nodes: 0 solveTime: 21070 buildTime: 130 solved: true
{0,30,34}
{1,2,13}
{3,4,15}
{5,8,20}
{7,24,35}
{9,11,27}
{10,25,32}
{12,21,28}
{14,38,39}
{16,23,37}
{17,26,33}
{18,19,22}
{29,31,36}