Search found 293 matches

by noobpwnftw
Sun Dec 09, 2018 8:05 pm
Forum: Computer Chess Club: General Topics
Topic: Alphazero news
Replies: 381
Views: 45978

Re: Alphazero news

Brute-forcing of those 28 million parameters of a evaluation function in a black-box style is neither efficient nor intelligent. Isn't it obvious that it is very easy to trick people into certain interpretations of my one liner, if I do not put any emphasis mark. I learned that only recently thanks...
by noobpwnftw
Sun Dec 09, 2018 5:31 pm
Forum: Computer Chess Club: General Topics
Topic: Alphazero news
Replies: 381
Views: 45978

Re: Alphazero news

Brute-forcing of those 28 million parameters of a evaluation function in a black-box style is neither efficient nor intelligent. For generic algorithm, yes, a lazy man's solution to everything, but in chess domain, I do not see how it differs from a giant SPSA run in principle, and how would one cal...
by noobpwnftw
Sat Dec 08, 2018 12:50 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Cumulative building of a shared search tree
Replies: 19
Views: 4668

Re: Cumulative building of a shared search tree

I finally got it ported to chess, now it seems working but without any GUI. http://www.chessdb.cn/cdb.php?action=queryall&board=rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR%20w%20KQkq%20-&showall=1 Available values for "actions": queryall/querybest/query/queryscore/querypv The "board" parameter takes...
by noobpwnftw
Fri Dec 07, 2018 2:16 pm
Forum: Computer Chess Club: General Topics
Topic: Alphazero news
Replies: 381
Views: 45978

Re: Alphazero news

Jouni wrote:
Fri Dec 07, 2018 1:00 pm
I only looked so far for TCEC opening games. AO seems to be sometimes like patzer and loses in 22 moves to outdated SF :o .
g4 with a queen, can't defend. :D
by noobpwnftw
Fri Dec 07, 2018 12:42 am
Forum: Computer Chess Club: General Topics
Topic: Alphazero news
Replies: 381
Views: 45978

Re: Alphazero news

A year ago, A0: 4TPUs @ 80k SF: 64 cores @ 70,000k
Now, A0: 4TPUs @ 63k (13k), SF: 44 cores @ 58,100k (24,000k)

"Evaluation speed is the average over entire games at full time controls from
the initial board position (the main evaluation in Figure 2), standard deviations are shown in
parentheses."
by noobpwnftw
Fri Dec 07, 2018 12:09 am
Forum: Computer Chess Club: General Topics
Topic: Alphazero news
Replies: 381
Views: 45978

Re: Alphazero news

I have a few questions: TCEC SuFi used 120' + 15" TC, Division P used 90' + 10" TC, since DM went for mimicking TCEC conditions this time like using a 44-core machine and with the same openings, why mess with time controls(again)? Also, a year ago the NPS of A0 was 80K, now it is only around 60K, th...
by noobpwnftw
Sat Sep 22, 2018 8:31 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: My PHP Chess Move Generator is slow. Help!
Replies: 12
Views: 2016

Re: My PHP Chess Move Generator is slow. Help!

There is a thing called PHP native extensions and it can be OOP as well.
by noobpwnftw
Sun Sep 16, 2018 9:11 pm
Forum: Computer Chess Club: General Topics
Topic: Chess.com 2018 computer chess championship
Replies: 279
Views: 50131

Re: Chess.com 2018 computer chess championship

Interesting. I wonder how Intel hyperthreads compare to AMD hyperthreads. As far as I know, AMD ones are way more efficient and work way better, while Intel ones kinda suck, at least for chess. Is there some kind of study about this? I cannot test every platform/combinations but to my knowledge, wi...
by noobpwnftw
Sun Sep 09, 2018 7:32 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: 7-men Syzygy attempt
Replies: 588
Views: 113950

Re: 7-men Syzygy attempt

Sesse wrote:
Sun Sep 09, 2018 4:27 pm
I couldn't find any checksums on your FTP server; did I miss anything?
Wise FTP server not serving the file unless explicitly labeled by SELinux :D

Now it is fixed, ftp://ftp.chessdb.cn/pub/syzygy/7men/checksums.txt
by noobpwnftw
Sun Sep 09, 2018 4:15 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: 7-men Syzygy attempt
Replies: 588
Views: 113950

Re: 7-men Syzygy attempt

It means that we really need to eradicate FTP and HTTP as they are not reliable ways to exchange large volumes of files.

I used rsync during the building process. Also I have put my tbcheck checksums on the FTP site.