More please
The App Store needs more apps like this one. A breath of fresh air, no bs, just puzzles =] Edit: Unfortunately my iPad Air 2 won’t fully generate a 20x20 hard puzzle. Let it go for over an hour and was only about 60% done. Works great for medium difficulty, but kind of unfortunate I can’t generate hard puzzles. Any way you could add some pregenerated ones or optimizations to the algorithm so it will finish in a timely manner?