n: 40 m: 486 packed: 13 density: 0 nodes: 0 solveTime: 31810 buildTime: 140 solved: true
{0,19,21}
{1,24,26}
{2,12,18}
{3,9,27}
{4,13,34}
{5,28,37}
{6,23,39}
{7,8,25}
{11,22,38}
{14,20,36}
{15,31,35}
{16,30,33}
{17,29,32}