Statistics et al.: AlphaZero, Stockfish, and flexibility regarding chess variants.

How did Google's AlphaZero beat the world's best chess computer?

Left: Training AlphaZero by self-play gives artificial intelligence in

A New Kind Of Chess! - Top 10 of the 2010s - AlphaZero vs. Stockfish, 2017

AlphaZero's stunning victory over chess engine Stockfish raises hopes of Artificial Intelligence's positive impact on royal game-Sports News , Firstpost

How a neural network taught itself chess, Science Sessions

The world's strongest Go AI · AlphaGo evolved to AlphaZero where you can learn any board game - GIGAZINE

Even AlphaZero Found This Game Hard

Is there an Open Source version of AlphaZero? (specifically, the generic game-learning tool, distinct from AlphaGo) - Quora

AlphaZero Chess: How It Works, What Sets It Apart, and What It Can Tell Us, by Maxim Khovanskiy

AlphaZero Is the New Chess Champion, and Harbinger of a Brave New World in AI