Test and train your photographic memory! Can you keep up with the chimpanzee Ayumu? You have to memorize the positions of up to nine numbers within a very short time span. The chimpanzee Ayumu accomplishes this masterfully, even if he has seen the numbers for just 210 milliseconds. The human test persons undergoing the same test performed worse. What about you? What can you grasp with a glance? For training you can set longer time spans (and less than nine numbers). There is even a special setting for hiding the numbers only when the first one is touched. Ayumu did start his training like that, too, by the way (although he did have to learn first that numbers are ordered). You can track your progress with several statistics (Ayumu prefers raisins ;-). The application is based on real trials with chimpanzees which were performed in 2007 in Japan.