Magic Puzzle

Every turn 4 balls of the different colors appear on the game field. Your aim is to create 2x2 squares of the same colored
balls. You create a square and then it disappears and frees space. You lose a game If the game field is filled up
completely. Create 2x3 or 3x2 rectangles to gain additional bonuses. Left click on bonus at to activate it any time you want.