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Any engine has an opening repertoire by definition. Stockfish also prefers some opening moves over others, and would considtently play these. The game of chess has an opening repertoire too. Some openings draw but many lose, plausibly even as early as the 2nd or 1st move. For example, the Alekhine'...

For example, if SF plays 1. e4 openings very poorly as white, but never plays it, should any 1. e4 openings be used to estimate SF's strength as white? Of course not. However, "strength as white" is a strange concept. Forcing this hypothetical SF to play both sides of 1.e4 would be completely fair....

I am really in pajama going to sleep. Play that A0 (not the improved one) as it wants, really as it wants, with the current free BrainFish version using UCI option for diversified openings, in your TCEC conditions. It's that easy. I would bet 1:1 that BrainFish wins. I may lose, but the bet seems f...

We used the BrainFish player for the book moves, and switch to SF8 (for consistency with other results) once out of book. We did that to make sure we were using the opening book correctly, and we weren't aware of the BF UCI option for diversity, so we only tried enforcing diversity from the AZ side...

Yes, but didn't they take SF8 + book itself, and not the full BrainFish with its UCI option? That would be a good match: A0 versus full BrainFish of early 2018 with varied openings UCI option, but they seem to not have done that. This is an important question. Matthew, can you confirm whether Brain...

Can you help me locate the games AZ played against Brainfish? They don't seem to have their own file, and I don't see any identifying info in alphazero_vs_stockfish_all.pgn Only games from the primary evaluation and TCEC openings have been released (no opening books). D'oh! Why? I've been wanting t...

Matthew: Congrats on the phenomenal success.

Can you help me locate the games AZ played against Brainfish? They don't seem to have their own file, and I don't see any identifying info in alphazero_vs_stockfish_all.pgn

Thank you!

-Carl

Blog post with video from DeepMind with links to the new Science paper, plus downloads of all games, including the 2017 games against Stockfish and new games played against Stockfish and Brainfish (!) https://deepmind.com/blog/alphazero-shedding-new-light-grand-games-chess-shogi-and-go/ Zipproth: Ca...

Guenther wrote: ↑

Sun Dec 02, 2018 8:45 am

...only a bit over 2 years too late - it's more commonly known as 'Suicide Chess'
http://talkchess.com/forum3/viewtopic.p ... ed#p689200

Yes, I noted this possibility in my post. Anyway, the solution has been updated since then.

-Carl

Pardon if this has been discussed here before, but it's new to me.

Losing Chess is weakly solved -- 1. e3 wins for white. Site with full details, including an online solution browser

http://magma.maths.usyd.edu.au/~watkins/LOSING_CHESS/

-Carl