n: 40 m: 249 packed: 13 density: 0 nodes: 0 solveTime: 1840 buildTime: 40 solved: true
{0,6,21}
{1,22,23}
{2,25,38}
{3,8,14}
{4,10,19}
{5,18,39}
{7,28,34}
{9,11,27}
{12,24,32}
{15,31,35}
{16,29,36}
{17,30,37}
{20,26,33}