AI - Google AlphaZero beats Stockfish 8

https://www.google.ch/amp/www.dailymail.co.uk/sciencetech/article-5155009/amp/Googles-AI-mastered-chess-four-hours-scratch.html

AI - Chess Giraffe 2015

https://www.google.ch/amp/s/www.technologyreview.com/s/541276/deep-learning-machine-teaches-itself-chess-in-72-hours-plays-at-international-master/amp/

AI - Google TPU vs NVIDIA Pascal

https://www.forbes.com/sites/moorinsights/2017/04/13/googles-tpu-for-ai-is-really-fast-but-does-it-matter/#5b3b35182f96

Google DeepMind AlphaZero was trained in 2 days from scratch knowledge of chess and is based on 4 TPUs.