Dec 14, 2017

Interesting information on reasons for choosing a 1GB hash size, thanks.

> A0 should have let Stockfish use its opening book though.

Has it been confirmed that it didn't? As far as I can tell, DeepMind never said that Stockfish didn't use an opening book or endgame tablebase, only that AlphaZero didn't: https://twitter.com/demishassabis/status/938347604462542849

The only time opening books are mentioned in the arxiv paper is when they are described as standard components of chess engines; while it doesn't explicitly state whether Stockfish was allowed to use them in the tests, I would think it likely: https://arxiv.org/abs/1712.01815

The rumor that Stockfish didn't have an opening book seems widespread but unsourced.

Dec 07, 2017

The arxiv paper is here: https://arxiv.org/abs/1712.01815