n: 40 m: 240 packed: 13 density: 0 nodes: 0 solveTime: 1990 buildTime: 40 solved: true
{0,18,26}
{1,5,13}
{2,7,27}
{3,11,23}
{4,8,10}
{9,32,35}
{12,30,36}
{14,20,37}
{15,19,28}
{16,31,34}
{17,21,38}
{22,24,25}
{29,33,39}