Re:Alpha Go Zero: How and Why It Works
by nschucher on Sunday November 05, 2017 @12:57AM
(#15628220)
They're most likely referring to adversarial attacks where degenerate inputs are constructed that could cause AlphaGo Zero to perform sub-optimally or catastrophically fail (see OpenAI Research [0]). This is distinct from generative adversarial networks (GANs) or adversarial self-play (which I guess AlphaGo Zero is an example of).
GAN's were not used for alphaGo, as the article points out Deepmind uses reinforcement learning and MCTS.