Search found 466 matches

by Robert Pope
Mon Jun 24, 2019 3:00 pm
Forum: Computer Chess Club: General Topics
Topic: evaluation that usually go up when you are winning
Replies: 14
Views: 1466

Re: evaluation that usually go up when you are winning

Increasing evaluations is due to the search discovering new tactical combinations that win more and more material. Aside from the missing queen, this is the opening position. The search is spending so much of its tree just developing pieces that tactical combinations just don't show up immediately. ...
by Robert Pope
Mon Jun 24, 2019 2:23 am
Forum: Computer Chess Club: General Topics
Topic: LC0-Leela0 Rating Controversy..Whats The Strength?
Replies: 7
Views: 1186

Re: LC0-Leela0 Rating Controversy..Whats The Strength?

Happened to be surfing looking for the latest LeelaFish/LC0 for some final testing and stumbled by accident to some new "Revelations" People around the Globe are having problems coming up with a rating for the "Engine/Program" LC0 Behold the New latest entry...: https://github.com/LeelaChessZero/lc...
by Robert Pope
Tue Jun 18, 2019 2:43 pm
Forum: Computer Chess Club: General Topics
Topic: Is Blas, or OpenCL really the right way to go
Replies: 16
Views: 1366

Re: Is Blas, or OpenCL really the right way to go

I've been wondering is Blas or OpenCL really the right way to go for LC0 on CPU? Because when I look at the performance of Komodo MCTS on CPU, Komodo appears to be light years ahead of LC0 as far as MCTS is concerned. Of course Komodo is no match for LC0 on GPU, but on CPU, LC0 would get smashed by...
by Robert Pope
Thu Jun 06, 2019 5:36 pm
Forum: Computer Chess Club: General Topics
Topic: Is AlphaZero-LC0 (Leela0) A chess Engine?
Replies: 31
Views: 5209

Re: Is AlphaZero-LC0 (Leela0) A chess Engine?

Do you know the mean error between the actual output of the value head and the target train value? That would be dependent on the exact net you choose to examine, as well as the specific data you are comparing against. Also, not really relevant to his question or my response. Ok, so you don’t know ...
by Robert Pope
Thu Jun 06, 2019 1:55 pm
Forum: Computer Chess Club: General Topics
Topic: Is AlphaZero-LC0 (Leela0) A chess Engine?
Replies: 31
Views: 5209

Re: Is AlphaZero-LC0 (Leela0) A chess Engine?

chrisw wrote:
Wed Jun 05, 2019 7:43 pm

Do you know the mean error between the actual output of the value head and the target train value?
That would be dependent on the exact net you choose to examine, as well as the specific data you are comparing against. Also, not really relevant to his question or my response.
by Robert Pope
Wed Jun 05, 2019 7:18 pm
Forum: Computer Chess Club: General Topics
Topic: Is AlphaZero-LC0 (Leela0) A chess Engine?
Replies: 31
Views: 5209

Re: Is AlphaZero-LC0 (Leela0) A chess Engine?

It does not work like that. It starts with the rules of the game. It does self play to learn what things are good and what things are bad. It is not memorizing board positions. It writes out a file of numbers called a network that contains the values for different board features. It uses this netwo...
by Robert Pope
Tue Jun 04, 2019 5:50 pm
Forum: Computer Chess Club: General Topics
Topic: Is AlphaZero-LC0 (Leela0) A chess Engine?
Replies: 31
Views: 5209

Re: Is AlphaZero-LC0 (Leela0) A chess Engine?

It does not work like that. It starts with the rules of the game. It does self play to learn what things are good and what things are bad. It is not memorizing board positions. It writes out a file of numbers called a network that contains the values for different board features. It uses this netwo...
by Robert Pope
Sun May 26, 2019 3:40 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: QSearch perft
Replies: 24
Views: 3459

Re: QSearch perft

I think the difference is due to the fact that you don't generate check-evasions, because check-evasions will contain non captures too. So you have to generate evasions when the king is in check. You have to do this in quiescence too, otherwise your quiescence will make very big errors. Do you have...
by Robert Pope
Fri May 24, 2019 9:08 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: QSearch perft
Replies: 24
Views: 3459

Re: QSearch perft

I think the difference is due to the fact that you don't generate check-evasions, because check-evasions will contain non captures too. So you have to generate evasions when the king is in check. You have to do this in quiescence too, otherwise your quiescence will make very big errors. Do you have...
by Robert Pope
Wed May 22, 2019 4:00 pm
Forum: Computer Chess Club: General Topics
Topic: We need more GPUs to improve the BIG LC0:)
Replies: 7
Views: 1840

Re: We need more GPUs to improve the BIG LC0:)

Damir wrote:
Wed May 22, 2019 2:56 pm
Why offer more GPU support, when Lc0 networks have not been updated for almost a week ? :o :o
This is a different network. If your GPU can't go towards the Lczero.org net, why not support this one for a bit?