Leela Chess and Non Zero Chess and neural networks

Annotated Games from Fischer's 1966 U.S. Championship

Fischer’s dominant performance in the 1966 U.S. Championship, now with Leela.

The games are annotated using a modified version of Chess Artist, using Leela Chess Zero for the opening and early middlegame, and asmFish for the late middlegame and ending. The leela network used was 42310.

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Annotated Games from Spassky vs Fischer WCC

Spassky vs Fischer is legendary, now with a touch of Leela.

The games are annotated using a modified version of Chess Artist, using Leela Chess Zero for the opening and early middlegame, and asmFish for the late middlegame and ending. The leela network used was 42310.

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Annotated Games from Karpov vs Korchnoi 1974

The battles between Karpov and Korchnoi were epic. Here their 1974 World Championship match. Now annotated with Leela.

The games are annotated using a modified version of Chess Artist, using Leela Chess Zero for the opening and early middlegame, and asmFish for the late middlegame and ending. The leela network used was 42287.

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Annotated Games from Zurich 1953

Zurich 1953 is for me the chess tournament. Incredible players. Incredible chess. Now annotated with Leela.

The games are annotated using a modified version of Chess Artist, using Leela Chess Zero for the opening and early middlegame, and asmFish for the late middlegame and ending. The leela network used was 42202.

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Annotated Games from Carlsen's GRENKE Chess Classic Win

Magnus Carlsen recently won the GRENKE Chess Classic by a good margin. I’ve annotated the games with a leela flavor.

The games are annotated using a modified version of Chess Artist, using Leela Chess Zero for the opening and early middlegame, and asmFish for the late middlegame and ending. The leela network used was 42189.

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Annotated Games from Zsofia Polgar's Sack of Rome

Zsofia Polgar, age 14, had a stunning 2900+ performance rating at the 1989 Rome Open. Known as “the sack of Rome,” here are the games annotated with a Leela flavor. The games are annotated using a modified version of Chess Artist, using Leela Chess Zero for the opening and early middlegame, and asmFish for the late middlegame and ending. The leela network used was 42138.

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Annotated Games of the 2018 World Chess Championships

The 2018 WCC match berween Carlsen and Caruana has been annotated before, but I decided to add some Leela flavor. The games are annotated using a modified version of Chess Artist, using Leela Chess Zero for the opening and early middlegame, and asmFish for the late middlegame and ending. The leela network used was 42138.

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Annotated Games of Jennifer Yu at the 2019 U.S. Championship (Women)

Jennifer Yu won the 2019 U.S. Championship (Women) by a good margin. Her games are annotated using a modified version of Chess Artist, using Leela Chess Zero for the opening and early middlegame, and Stockfish 10 for the late middlegame and ending. The leela network used was 42138.

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Statement From LCZero Core Dev Team

[Editor’s note: if you’re curious as to why I stopped blogging for LCZ, it’s this statement by the “core” dev team. I considered it ill advised and intemperate. I published it under protest and then washed my hands of the whole thing.]

Update from LCZero core devs team on DeusX TCEC entry

Two days before start of TCEC season 13, it was revealed that “DeusX engine” is just a set of NN weights trained by Albert Silver for the Lc0 engine.

The LCZero team had a very short period to analyze the situation and react to it, especially given that members of LCZero core dev team were in different timezones or on vacation, and given that even after the announcement it was not completely clear what the “DeusX engine” exactly was and which tools were used to produce the weights.

Because of this, and to avoid damaging the reputation of TCEC, we agreed to allow “DeusX engine” to participate in the TCEC.

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TCEC Div4 Update

Live coverage available here and on twitch streaming.

Division 4, Just Past Halfway

Just past the halfway point, Leela’s fate is in her hands. With a win she could draw a half point ahead of Wasp for clear first. With a draw she could be once again tied with Wasp. With a loss she could drop into a tie for second place with DeusX, who had a very impresive win over Tucano.

It depends on this next game with white against Rodent, from whom Leela has one win and one draw. A lot of engines remain in striking distance with a lot of chess left to play.

N Engine   Rtng  Pts Gm  Elo Perf Wa  Lc  De  Ch  Se  Ro  Iv  Tu 

1 Wasp     2964 10.0 15 +157 66.7 ··· 1=  11  =0= ==  =1  1=  1= 
2 LCZero   3219  9.5 14  -16 67.9 0=  ··· 1=  11  11  1=  ==  == 
3 DeusX    3200  9.5 15  -31 63.3 00  0=  ··· 11  ==  ==  11  111
4 Chess22k 3072  7.0 15  -20 46.7 =1= 00  00  ··· ==  =1  ==  1= 
5 Senpai   3062  6.5 14   -9 46.4 ==  00  ==  ==  ··· ==  01  1= 
6 Rodent   3030  6.5 14  +13 46.4 =0  0=  ==  =0  ==  ··· ==  11 
7 Ivanhoe  3116  5.5 14  -78 39.3 0=  ==  00  ==  10  ==  ··· == 
8 Tucano   2919  3.5 15  -17 23.3 0=  ==  000 0=  0=  00  ==  ···
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Copyright (c) 2018 Dietrich Kappe