Puzzle fanatic? Love a challenge? The Pentos app might just be for you.
Created by a retired professor of mathmatics, Pentos is a modern remake of pentominoes puzzles for your iPhone or iPod Touch. Pentominoes puzzles are educational and thought-provoking shape puzzles that can vary in difficulty, depending on what settings you start with on this app. You can make it easy or hard, large or small, and have a puzzle you can solve in 30 seconds or one that will keep you guessing for minutes on end.