Search found 146 matches

by Fulvio
Sat Oct 19, 2019 12:48 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Understanding and Pushing the Limits of the Elo Rating Algorithm
Replies: 7
Views: 530

Re: Understanding and Pushing the Limits of the Elo Rating Algorithm

Michel wrote:
Tue Oct 15, 2019 8:30 am
https://arxiv.org/abs/1910.06081

Nothing that wasn't already known unfortunately.
tl;dr

Based on the ELO difference, the current algorithm gives the following probability of winning:
+0 --> 50%
+100 --> 64%
+200 --> 76%
+300 --> 85%
+400 --> 91%

What are values of the improved algorithm?
by Fulvio
Tue Oct 08, 2019 1:59 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: PGN standard, its improvement and standardization
Replies: 51
Views: 3294

Re: PGN standard, its improvement and standardization

The main thing for me is to unify the formats of online tournaments That can be done with the current PGN. You already posted how TCEC encode the engine's evaluation: d=16, sd=51, mt=161000, tl=7049000, s=219832, n=35024512, pv=Nb3 ... But is the order of the operands mandatory? sd=51, d=16, ... is...
by Fulvio
Mon Oct 07, 2019 4:09 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: PGN standard, its improvement and standardization
Replies: 51
Views: 3294

Re: PGN standard, its improvement and standardization

The PGN format is an abortion… But your proposals fail to adress the real problem of PGN which is its (un)parsability Some time ago I would have agreed, but then I rewrote the code for SCID and changed my mind. The trick is to avoid a state-machine that reads the characters one at a time: https://s...
by Fulvio
Wed Aug 28, 2019 9:13 am
Forum: Computer Chess Club: General Topics
Topic: 29 Alpha-Beta's against Leela...
Replies: 62
Views: 9924

Re: 29 Alpha-Beta's against Leela...

I organized a engines tournament; the A/B's got their best conditions, and the NN's got their best conditions. At the end I added up - basta :-) Great article, very interesting. To give every engine the best condition, I think it would be preferable to do two matches for each position, with inverte...
by Fulvio
Thu Aug 01, 2019 12:24 pm
Forum: Computer Chess Club: General Topics
Topic: Lc0 Settings
Replies: 6
Views: 1959

Re: Lc0 Settings

Is there a page explaining how the different engine Settings work (With minimum and maximum of values)? I found a page on the Leela homepage, but there are only parameters of Lc0 0.17. That's sad sorry. You can see all the options, along with their default, min and max values here. What they all me...
by Fulvio
Mon Jul 29, 2019 6:29 am
Forum: Computer Chess Club: General Topics
Topic: Stockfish vs. Lc0: IMHO disappointing result for Lc0
Replies: 37
Views: 4866

Re: Stockfish vs. Lc0: IMHO disappointing result for Lc0

Here's one of the games...let me know what you think of this "beauty" :D :wink: I don't understand the hate. It's a beautiful game, original, interesting and with a spectacular ending. Lc0 just blundered with 19.. c5 due to the slow GPU (it created the d6 weakness, which was exploited with the incr...
by Fulvio
Tue Apr 23, 2019 11:42 am
Forum: Computer Chess Club: General Topics
Topic: Stockfish misevaluations:
Replies: 31
Views: 4028

Re: Stockfish misevaluations:

And what's wrong with that? White will eventually sac a pawn, break free and win the game :shock: It will take some time with 50 move rule, sure, but white will win. +1 I played 3 games as black against Stockfish and lost them all. If you allow the b5 sac the queen enters using the dark squares and...
by Fulvio
Fri Apr 05, 2019 8:42 pm
Forum: Computer Chess Club: General Topics
Topic: Elements of the ULTIMATE Chess GUI?
Replies: 197
Views: 27661

Re: Elements of the ULTIMATE Chess GUI?

If we use MonetDB, then the data will be accessed at (approximately) memory speed. Do you have some concrete benchmark? Let's say a 10 million games database: how long it takes to find the games (not just the positions, if I would like to study the ending I need to see the continuation) with for ex...
by Fulvio
Fri Apr 05, 2019 8:16 pm
Forum: Computer Chess Club: General Topics
Topic: Elements of the ULTIMATE Chess GUI?
Replies: 197
Views: 27661

Re: Elements of the ULTIMATE Chess GUI?

sovaz1997 wrote:
Fri Apr 05, 2019 8:05 pm
For the ending, there are other solutions - the Nalimov tables, the Syzygy tables. I don't think that the database is suitable for this.
Oh... no positional search?
That's a very big limitation for the ULTIMATE Chess GUI...
by Fulvio
Fri Apr 05, 2019 8:01 pm
Forum: Computer Chess Club: General Topics
Topic: Elements of the ULTIMATE Chess GUI?
Replies: 197
Views: 27661

Re: Elements of the ULTIMATE Chess GUI?

If we use MonetDB, then the data will be accessed at (approximately) memory speed. Do you have some concrete benchmark? Let's say a 10 million games database: how long it takes to find the games (not just the positions, if I would like to study the ending I need to see the continuation) with for ex...