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Stockfish (Computer) vs AlphaZero (Computer)
AlphaZero - Stockfish Match (2018), London ENG, Jan-18
French Defense: Alekhine-Chatard Attack. Albin-Chatard Gambit (C13)  ·  1-0
ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
Jan-05-19
Premium Chessgames Member
  keypusher: Courtesy of <Ron> here's a Daniel King video showing how SF beat A0 in just 22 moves.

https://eswomen.com/id/alphazero-cr...

Jan-05-19
Premium Chessgames Member
  Ron: Thank you Keypusher. This game has influenced me. If I am faced with a position after black's 5th move, I intend to play h4.
Jan-08-19
Premium Chessgames Member
  offramp: Stockfish was a bit of a punching bag during this long match, but when he was put into SLEEP mode after this game he must have been very happy.
I lost count of the number of piece offers he made.

People who play the French Defence may have to reappraise their Umwelt: the Chatard-Alekhine looks too strong!

Jan-08-19
Premium Chessgames Member
  AylerKupp: The best moves in the game, by either side, were played by <book>.
Jan-10-19
Premium Chessgames Member
  Ron: <AylerKupp: The best moves in the game, by either side, were played by <book>.>

I disagree. In the game, 6. ... Bxg5 was a book move. But it appears not to be best.

My Stockfish prefers 6. .. h6 for Black here.

I've played some trial games with Stockfish, one group where Black plays 6. ... Bxg5, the other group where Black plays 6. ... h6, and 6. ... h6 does seem better than 6.... Bxg5.

I'm willing to bet that if either Stockfish or AlphaZero could play Black's sixth move, it would NOT play 6. ... Bxg5.

Jan-10-19
Premium Chessgames Member
  zanzibar: <Ron> funny you should mention that...

AlphaZero vs Stockfish, 2018 (kibitz #5)

.

Jan-11-19
Premium Chessgames Member
  AylerKupp: <Ron> My comment about "book" was largely tongue in cheek. But you make a good point. I had assumed that 6...Bxg5 had been pretty much discredited since the original game with this variation, and played only by those who, seduced by the gain of a pawn, did not fully appreciate the initiative gained by White. So maybe Stockfish was a victim of a bad "book".

You didn't indicate the scenario of your trial games (e.g. the time control), the number of games (to determine if the results were statistically significant), and, for that matter, what the win, draw, loss results of the trials were. I think that the numbers would be of interest to many.

Jan-12-19
Premium Chessgames Member
  keypusher: <AylerKupp> <Ron>

6....h6 (and 6....Nc6) score better in the CG database than 6....Bxg5 (or anything else). But what is Opening Explorer, really, but a chronicle of human error? :-)

Opening Explorer

Jan-15-19
Premium Chessgames Member
  FSR: Gotta love the theme of sticking one's bishop and knight into a pawn fork on successive moves, la P H Nielsen vs T Hillarp Persson, 1998 and Aronian vs Anand, 2013.
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