As some mentioned, you have to pay to play. There is an algorithm that when you pay for coins, somehow boosters are created out of the woodworks without you trying. Otherwise, you're stuck on a stage for a long time cause they give you hardly enough moves to have any chance. They might as well consider every stage extremely difficult cause all the stages at this point are impossible. And lastly, now if you exit the game for any and come back, the game resets. So you lose a life. Thats dumb