Search found 3668 matches

by jdart
Sun Aug 25, 2019 1:42 am
Forum: Computer Chess Club: General Topics
Topic: 29 Alpha-Beta's against Leela...
Replies: 27
Views: 536

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

Something is really wrong with Fire-NN, which is playing in TCEC 16.

Here against Stoofvlees it played Qxb4??

by jdart
Sat Aug 24, 2019 1:15 pm
Forum: Computer Chess Club: General Topics
Topic: Google "DeepMind" AI Chief Placed On Leave..
Replies: 13
Views: 759

Re: Google "DeepMind" AI Chief Placed On Leave..

Google is not really saying why he is going on leave. I don't think the operating losses are the reason. Google (and especially its parent company Alphabet) has the business model of starting a lot of projects. They tolerate losses for quite a while, but they eventually kill off the ones that don't ...
by jdart
Tue Aug 20, 2019 10:12 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Syzygy 7-piece - several questions
Replies: 7
Views: 346

Re: Syzygy 7-piece - several questions

Do you have any special 7-piece file that will make the 6-piece probing code fail/crash by some integer overflow or whatever? Would probably be useful for testing in both cases. -Andreas The 6-man code won't even try to load, much less probe, 7-man bases. I have some test cases in the unit tests fo...
by jdart
Tue Aug 20, 2019 1:05 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Syzygy 7-piece - several questions
Replies: 7
Views: 346

Re: Syzygy 7-piece - several questions

> I guess this interface from Ronalds github isn't updated to support 7-piece as the latest updates are two years old. Right? Right, and not likely to be, as I understand it. > Do you have a recommendations which code to look at for the necessary changes? Maybe cfish? The problem with the cfish code...
by jdart
Tue Aug 20, 2019 12:55 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Self testing and high draw ratio
Replies: 3
Views: 218

Re: Self testing and high draw ratio

xr_a_y wrote:
Mon Aug 19, 2019 8:22 pm
What elo0 and elo1 are you recommending ?
The ELO range is passed as parameters to the SPRT function. I don't adjust the values that are in the script. For me very few patches are +10 or +20 ELO.

--Jon
by jdart
Mon Aug 19, 2019 8:08 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Self testing and high draw ratio
Replies: 3
Views: 218

Re: Self testing and high draw ratio

You should be using SPRT if testing new version against old version. I have a little python3 script here that will monitor cutechess-cli logs, report SPRT results, and terminate tests once there is a signficant result (may need some slight mods for your environment): https://github.com/jdart1/arasan...
by jdart
Mon Aug 19, 2019 7:04 pm
Forum: Computer Chess Club: General Topics
Topic: Building PC
Replies: 20
Views: 1226

Re: Building PC

Dann Corbit wrote:
Mon Aug 19, 2019 6:46 pm
The solar is a good idea, but I think that the tax breaks have evaporated.
There is a 30% tax rebate available this year. Goes down the next few years.

--Jon
by jdart
Mon Aug 19, 2019 6:26 pm
Forum: Computer Chess Club: General Topics
Topic: Building PC
Replies: 20
Views: 1226

Re: Building PC

I am pondering buying a dual Epyc For what I am doing (mostly testing) I need a lot of cores but they don't have to be fast. So older cheaper machines work fine. But I am putting in solar this fall because my electricity bills hit $500/month in the summer, with the A/C and servers going. For what d...
by jdart
Sun Aug 18, 2019 2:50 pm
Forum: Computer Chess Club: General Topics
Topic: Where did all these 3400 engines come from?
Replies: 40
Views: 1916

Re: Where did all these 3400 engines come from?

But do they play really chess ? I mean, do they have a plan or do they make moves that do not lose material?! Well, they don't usually lose material to shallow tactics. The NN engines used to do that but they have improved to the point where mostly they don't. All these programs rely on heuristics:...
by jdart
Sat Aug 17, 2019 3:19 am
Forum: Computer Chess Club: General Topics
Topic: Stockfish Wins Chess Com Engines Champs9!
Replies: 8
Views: 519

Re: Stockfish Wins Chess Com Engines Champs9!

Stockfish even won a game as Black with the weird KGA opening 1. e4 e5 2. f4 exf4 3. Nf3 h5 4. d4 g5 5. Bc4 [Event "CCC 9: The Gauntlet Final (10|5)"] [Site "Chess.com"] [Date "2019.07.11"] [Round "180"] [White "Leelenstein"] [Black "Stockfish"] [Result "0-1"] [ECO "C34"] [PlyCount "136"] [EventDate...