Perfect Brain 3D is a great place to help you train your brain with a set of very difficult questions. Are you good enough to win at all levels?
A simple stroke of a match transforms the equation into a beautiful picture. By forcing yourself to make the most optimal decision after shuffling the cards, you can sharpen your mental faculties. Since the integer solutions to these equations are constructed one by one from pairs of like digits, they are truly unique. The complexity will increase as you progress through the game and complete more challenging 3D puzzles. As you play, you'll pick up hints that will prove invaluable later on. Purge the island of anything that could prevent you from taking control of it.