I had to delete all of my friends, but I am finally able to focus on the matches that I am playing without being distracted by constant reminders to play with friends. The challenges are so extremely difficult that they drain my coins in one attempt to complete to complete the change. (Win 200,000 coins in games when I only have 100,000 coins). The only way to play this game is to spend real money. Even then the game takes everything that you buy in only minutes.