n: 40 m: 228 packed: 13 density: 0 nodes: 0 solveTime: 1350 buildTime: 30 solved: true
{0,13,21}
{1,23,30}
{2,32,38}
{3,22,31}
{4,15,16}
{5,19,39}
{6,29,33}
{7,10,25}
{8,12,28}
{9,27,35}
{11,14,34}
{17,20,26}
{24,36,37}