They have taken away the possibility to advance. That is the purpose of the game. Instead of earning puzzle pieces to expand, which is necessary to continue, they've made them rare to achieve. Now they are offering them for sale! What a ripoff. No other game does this. It's earned not bought! Taking this away totally ruined the game. Many are leaving the game just for that reason. No reason to play if it's impossible to advance. Whoever changed that should be fired. Makes no sense whatsoever.