Search found 169 matches

by Sesse
Fri Apr 05, 2019 3:57 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Elo World, a framework forbenchmarking weak chess engines
Replies: 8
Views: 960

Re: Elo World, a framework forbenchmarking weak chess engines

It is a joke you guys. If it helps, read the last page: "The author would also like to thank the anonymous referees of the Special Interest Group on Bafflingly Overdone Ventures In Chess journal for their careful reviews." It's a SIGBOVIK paper; SIGBOVIK is a joke conference. But Tom7 frequently su...
by Sesse
Wed Jan 30, 2019 11:50 pm
Forum: Computer Chess Club: Tournaments and Matches
Topic: How powerful is the Queen compared to 2 Rooks ?
Replies: 104
Views: 4710

Re: How powerful is the Queen compared to 2 Rooks ?

Here is what Stockfish says about the value of chessmen (note that pawns are not 100) during the midgame and during the endgame: PawnValueMg = 136, PawnValueEg = 208, KnightValueMg = 782, KnightValueEg = 865, BishopValueMg = 830, BishopValueEg = 918, RookValueMg = 1289, RookValueEg = 1378, QueenVal...
by Sesse
Sat Jan 26, 2019 10:44 am
Forum: Computer Chess Club: General Topics
Topic: Big boost in strength for LC0 by simply changing VGA card
Replies: 19
Views: 1853

Re: Big boost in strength for LC0 by simply changing VGA card

The RTX 2000 series has specialized hardware for neural networks. These “tensor cores” is the reason why your new GPU blows the old one out of the water—the number of CUDA cores simply doesn't matter, as they're not the ones doing the work.
by Sesse
Wed Jan 23, 2019 11:02 pm
Forum: Computer Chess Club: General Topics
Topic: Are computes without Database endgame better than Carlsen?
Replies: 9
Views: 1054

Re: Are computes without Database endgame better than Carlsen?

I think it depends on your definition of “better”. I'm fairly certain Stockfish on a fast computer would have a positive endgame score versus Carlsen. I'm not convinced it's as good as him in swindling drawn endgames against other GMs. A computer doesn't really understand the concept of putting the ...
by Sesse
Sun Jan 13, 2019 11:53 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Writing bugs
Replies: 66
Views: 6059

Re: Writing bugs

State is fine but it should be encapsulated in an object. Like so: rg=random_generator(seed) r=rg.rand() The state maintained by the rg object could be much more complicated than a single number (this would likely be the case for a cryptographically secure random generator). The rg object completel...
by Sesse
Sun Jan 06, 2019 8:30 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Writing bugs
Replies: 66
Views: 6059

Re: Writing bugs

Rebel wrote:
Sun Jan 06, 2019 4:09 pm
Today I had a new one, took me hours to see it.
Why didn't your compiler warn you?
by Sesse
Fri Jan 04, 2019 9:50 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Can you improve CPU performance with Intel library?
Replies: 4
Views: 542

Re: Can you improve CPU performance with Intel library?

It depends on what calculations you are doing. If you want to speed up big matrix multiplications, FFTs or other numerical code (and you don't want to push it to the GPU), MKL can help you. But an alpha-beta chess engine does none of that. NN engines do big matrix multiplications and convoltions, bu...
by Sesse
Thu Dec 20, 2018 12:22 am
Forum: Computer Chess Club: General Topics
Topic: 7 Man Syzygy and SSD
Replies: 27
Views: 2290

Re: 7 Man Syzygy and SSD **Hashes**

I don't seem to be able to find a list of MD5 hashes for 7 piece tables. I'd like to verify my downloads are not corrupt. Could someone point me to a list of hashes? Thanks Mike No MD5, but something better: http://tablebase.sesse.net/syzygy/7-DTZ/SHA256SUMS http://tablebase.sesse.net/syzygy/7-DTZ/...
by Sesse
Wed Dec 19, 2018 8:29 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Don't use databases
Replies: 25
Views: 4005

Re: Don't use databases

Speaking of 18… when you have the last 18 replies to your own thread, with nobody else interested, perhaps it's time to call it quits.
by Sesse
Wed Dec 19, 2018 12:22 am
Forum: Computer Chess Club: General Topics
Topic: Komodo 12.3 is out
Replies: 76
Views: 8845

Re: Komodo 12.3 is out

I do not think Larry every had source code for Rybka. But anyway, if GUI writers would come up with a UCI spec for examining game trees in memory, the data is certainly in Komodo MCTS and I could the PVs available. For analysis.sesse.net, I chose to simply do it outside the regular UCI interface. T...