Search found 770 matches

by Joost Buijs
Sun Dec 09, 2018 1:13 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: UCI2WB 4.0
Replies: 12
Views: 500

Re: UCI2WB 4.0

I was just wondering, books can get very large given enough games and depth, and I don't think Winboard supports binary books larger than 2GB.
by Joost Buijs
Sun Dec 09, 2018 12:04 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: UCI2WB 4.0
Replies: 12
Views: 500

Re: UCI2WB 4.0

Does UCI2WB also support reading Polyglot books (like Polyglot does) or is it just an adapter only?
by Joost Buijs
Sun Dec 09, 2018 10:51 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Texel tuning for piece values
Replies: 12
Views: 657

Re: Texel tuning for piece values

There also is little need to do it, because Larry Kaufman already did it for us, and shared the results. ok I get that but why Rofchade get pieces value like those then const eval pieceValue[2][6] = { 82, 337, 365, 477, 1025, 12000, 94, 281, 297, 512, 936, 12000 }; Why not use 100 as MG pawn value ...
by Joost Buijs
Sat Dec 08, 2018 10:26 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: 1000 game match result
Replies: 5
Views: 538

Re: 1000 game match result

There was a lot of hype a while back, but these past few months were Lc0 has made no progress has somewhat toned down expectations. In any case, I think this is were we can expect engines to make more of a headway. They're still in their infancy, and already SF looks like the only real challenge to...
by Joost Buijs
Fri Dec 07, 2018 11:00 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: 1000 game match result
Replies: 5
Views: 538

Re: 1000 game match result

When you look at these match results the AlphaZero surpasses Stockfish8 by approx. 52 Elo points, so it is probably in the same league as Stockfish9. There is no doubt that AlphaZero is stronger positionally, but it probably misses a lot in the realm of tactics and endgames. When you look at how sim...
by Joost Buijs
Fri Dec 07, 2018 10:20 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: For perft nps, what is a node?
Replies: 8
Views: 395

Re: For perft nps, what is a node?

Hi, and thanks for your replies, I have tested my perft routine a lot, and I am confident that it is correct. I am now interested in trying to speed my engine up, so I need some kind of way to compare it to other engines. At the moment I am looking at move gen only, and I get Perft 6 (regular board...
by Joost Buijs
Mon Dec 03, 2018 12:36 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: check extension
Replies: 12
Views: 829

Re: check extension

In endgames with only queens and just a few pawns it happens often that a king is chased over the entire board without getting a repetition, there are probably more situations where this can happen. Consecutive checks? I'm talking about check at every single ply (both sides), not 1 check per move. ...
by Joost Buijs
Mon Dec 03, 2018 6:01 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: check extension
Replies: 12
Views: 829

Re: check extension

In endgames with only queens and just a few pawns it happens often that a king is chased over the entire board without getting a repetition, there are probably more situations where this can happen.
by Joost Buijs
Sat Dec 01, 2018 8:16 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Java: white ? repeat : repeat;
Replies: 31
Views: 1539

Re: Java: white ? repeat : repeat;

ker2x wrote:
Sat Dec 01, 2018 6:50 am
feel free to skip at 30:00 if you want to see what i'm talking about when i wrote about bit shifting.
When you multiply by 2 you can do even better than << 2
Haha, I always thought it was << 1, always good to learn something new.
by Joost Buijs
Mon Nov 26, 2018 7:35 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: alpha bound in hash table
Replies: 14
Views: 1074

Re: alpha bound in hash table

You can still store the move with the highest score in a fail-soft framework I guess ? You can do this by setting best-score at -inf at the start, but there is no way of telling that it is really the best move, if it gives you additional Elo it will be fine of course. In the past I saw that Stockfi...