What if a task that you thought only humans could perform, like playing a complex man-made board game, could now be done better by a machine? Sounds like sci-fi, but an artificial neural network-based program called AlphaGo has done just that by beating the human world champion at the game Go, creating waves in the computer intelligence world. Not once, but thrice. No, we are not playing games with you here!. Artificial neural networks (ANN) are computational models consisting of a large number of simple computational units called neurons. They are inspired by the plastic nature and structure of the human brain. ANNs are now a hot topic of research because they exhibit the potential to solve a wide variety of problems using a general approach.