Search found 185 matches

by Javier Ros
Sat Dec 08, 2018 8:24 pm
Forum: Computer Chess Club: Tournaments and Matches
Topic: Lc0 30xxx continues below the 10xxx series
Replies: 5
Views: 1218

Re: Lc0 30xxx continues below the 10xxx series

Lc0 played with endgame tabletables of 6 pieces, Stockfish9 no. Are you sure you played with all 6men for LC0? Normally it should be impossible then to lose the 6men endgame which was on board since move 44 by Black? Ok, giving away the pawn by 43.a7?! was already unnecessary, except you know the e...
by Javier Ros
Sat Dec 08, 2018 3:34 pm
Forum: Computer Chess Club: Tournaments and Matches
Topic: Lc0 30xxx continues below the 10xxx series
Replies: 5
Views: 1218

Lc0 30xxx continues below the 10xxx series

The series 30 of Leela Chess Zero continues advancing but it does not reach the level of the series 10. I have played two matches to compare: Lc0_11261-Stockfish9 Lc0_31696-Stockfish9 Lc0 has used a GTX1060 GPU with 3Gb while Stockfish 9 has used three cores of the i7 4790S resulting in an approxima...
by Javier Ros
Fri Dec 07, 2018 8:08 pm
Forum: Computer Chess Club: General Topics
Topic: Alphazero news
Replies: 381
Views: 98850

Re: Alphazero news

My sincere congratulations to the DeepMind team, because after half a century of alpha-beta algorithm their new approach has revolutionized computer chess and created authentic artworks in their games against Stockfish. Javier Ros Associate Professor of Applied Mathematics at the University of Sevi...
by Javier Ros
Fri Dec 07, 2018 10:06 am
Forum: Computer Chess Club: General Topics
Topic: Alphazero news
Replies: 381
Views: 98850

Re: Alphazero news

If during this time they have advanced and have achieved better results with A0 version 2 It's not clear whether they are actively developing it. Maybe not? I don't know, but for the amount of games and news in the revised version of the article, I would say that they have been quite busy until the...
by Javier Ros
Fri Dec 07, 2018 9:07 am
Forum: Computer Chess Club: Tournaments and Matches
Topic: Super bullet chess: LC0 network 31740 vs Stockfish 10 (~3500 elo) drawkiller tournament pgn
Replies: 8
Views: 2010

Re: Super bullet chess: LC0 network 31740 vs Stockfish 10 (~3500 elo) drawkiller tournament pgn

Super bullet chess: LC0 network 31740 vs Stockfish 10 (~3500 elo) Drawkiller tournament pgn After 40 games (still running) Ponder on LC0 with RTX 2080 Ti 32 kn/s Stockfish 10 with 4 cores @ 4.2 ghz Time control: 1 second per move. Result: LC0 18.5 points Stockfish 21.5 points +12 =13 -15 Winning pe...
by Javier Ros
Fri Dec 07, 2018 9:03 am
Forum: Computer Chess Club: General Topics
Topic: Alphazero news
Replies: 381
Views: 98850

Re: Alphazero news

Ok, I browsed quickly the paper and the additional material. All important results are against SF8, aside the one against SF9, but from 1 standard opening position. The Cerebellum book, "Human Openings" and TCEC openings are used by SF8. The results against SF8 + Cerebellum and against SF8 in TCEC ...
by Javier Ros
Wed Dec 05, 2018 2:00 pm
Forum: Computer Chess Club: Tournaments and Matches
Topic: Super bullet chess: LC0 network 31740 vs Stockfish 10 (~3500 elo) drawkiller tournament pgn
Replies: 8
Views: 2010

Re: Super bullet chess: LC0 network 31740 vs Stockfish 10 (~3500 elo) drawkiller tournament pgn

Super bullet chess: LC0 network 31740 vs Stockfish 10 (~3500 elo) Drawkiller tournament pgn After 40 games (still running) Ponder on LC0 with RTX 2080 Ti 32 kn/s Stockfish 10 with 4 cores @ 4.2 ghz Time control: 1 second per move. Result: LC0 18.5 points Stockfish 21.5 points +12 =13 -15 Winning pe...
by Javier Ros
Sat Dec 01, 2018 3:02 pm
Forum: Computer Chess Club: General Topics
Topic: My non-OC RTX 2070 is very fast with Lc0
Replies: 89
Views: 23156

Re: My non-OC RTX 2070 is very fast with Lc0

Thanks for sharing!
It seems that the speed of lc0 is impressive, you could say the specifications of the card like

8 GB de RAM, 1620 MHz Core Clock, etc
by Javier Ros
Thu Nov 29, 2018 3:46 pm
Forum: Computer Chess Club: General Topics
Topic: Leela is more Chess-domain specific than regular Chess engines
Replies: 34
Views: 10525

Re: Leela is more Chess-domain specific than regular Chess engines

The RL approach builds a giant evaluation function based on pattern recognition. The positions you present here are obviously irregular patterns and LC0 can make no real use of the pattern recognition. On the other hand, regular engines "break-down" the evaluation function into logical pieces of in...
by Javier Ros
Tue Nov 27, 2018 12:28 pm
Forum: Computer Chess Club: General Topics
Topic: Scaling of Lc0 at high Leela Ratio
Replies: 21
Views: 5804

Re: Scaling of Lc0 at high Leela Ratio

Very interesting experiment, thanks for sharing.

I have read in lc0 forum that somebody when using powerful GPU has put nncache=50000 instead of default nncache=20000

see for example

https://groups.google.com/forum/#!topic ... 0sJNuFMLPE

Maybe you can try it at longer time controls.