Jigsaw Puzzles can be solved in 4 difficulty levels: Easy - 84 jigsaw puzzle pieces Normal - 144 jigsaw puzzle pieces Hard - 240 jigsaw puzzle pieces Extreme - 378 jigsaw puzzle pieces In Jigsaw Pro you can find collections in these categories: - Nature and Landmarks Jigsaw Puzzles - People and Activities Puzzles - Art Jigsaw Puzzles - Travel Around the World - Animals Puzzles - Transportation - Objects