Multiple solutions after Give Up and better hints

A pretty cool update is that it can now generate solutions one at a time much quicker.  Now the player has the ability to swipe left and right to see alternative solutions after pressing Give Up.  

Hints were also made more human-readable.  Not only is the English more natural, but the hints let you know if there is only one possible solution from the current state of the puzzle or if there are multiple possible solutions.  With a bit of logical interpretation, hints can be quite helpful, especially if there is only one possible solution.