This game is like clash royale. There is an algorithm. The game decides if you win or not. Before you even start the next level it has already decided if you're going to win that round or not. If you want to assure victory you have to spend coins which gets very expensive after a while and you need coins to enter a new level. They also put you on a great start and then find a way to make you lose that round by giving you cards that don't match anything. Very frustrating game.