Search found 100 matches

by Peter Berger
Mon Jun 29, 2015 7:56 pm
Forum: Computer Chess Club: General Topics
Topic: World Computer Chess Championship 2015
Replies: 138
Views: 29955

Re: World Computer Chess Championship 2015

Is there any information on how come Junior doesn't compete this year?

Peter
by Peter Berger
Fri Jun 26, 2015 9:19 pm
Forum: Computer Chess Club: General Topics
Topic: Ponder=On vs. Ponder=Off
Replies: 12
Views: 1459

Re: Ponder=On vs. Ponder=Off

It is actually not so negligible. Take a two core box. You run A vs B, no ponder, both using 2 cores. They don't interfere with each other, both get 200% of normal compute time per move. Pretty good win. Now run A vs B, both pondering, both using 1 core. When it is A's move, it burns 100% of a CPU,...
by Peter Berger
Thu Jun 25, 2015 12:08 am
Forum: Computer Chess Club: General Topics
Topic: Ponder=On vs. Ponder=Off
Replies: 12
Views: 1459

Ponder=On vs. Ponder=Off

These days every ordinary computer or notebook has more than one CPU, mine has two e.g. I read on this board that given you have to decide between providing more CPUs to engines you pit against each other on a single computer for testing purposes with ponder off and less CPUs with ponder on you'd ra...
by Peter Berger
Thu Jun 18, 2015 12:24 pm
Forum: Computer Chess Club: General Topics
Topic: Any News on another TCEC season ?
Replies: 16
Views: 4556

Re: Any News on another TCEC season ?

Which goes to show that people should better play it slow before giving some private event "official status".

ICGA events may leave a lot of things to be desired, but they place responsbility where it is due, namely to the competitors.
by Peter Berger
Sat May 02, 2015 3:13 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: I would like to learn compiling
Replies: 3
Views: 1155

Re: I would like to learn compiling

Hi, I have questions from a total novice point of view : a) I red that the best .exe is the one compiled by youself for your own computer. Is it right ? . That's kind of like saying that the best chair is one that you make yourself specifically for your dimensions. For a skilled carpenter it would ...
by Peter Berger
Fri Apr 03, 2015 12:41 pm
Forum: Computer Chess Club: General Topics
Topic: Playing Styles of Chess Engines
Replies: 15
Views: 3478

Re: Playing Styles of Chess Engines

When it is about chessengines the discussion has already turned out to be moot years ago. When you outsearch someone like mad you are usually supposed to be a great positional player. It is great fun to look back at the engines that were once supposed to do great strategically and compair to the imp...
by Peter Berger
Sun Mar 22, 2015 12:47 pm
Forum: Computer Chess Club: General Topics
Topic: On Opening books in 2015
Replies: 134
Views: 14677

Re: On Opening books in 2015

If there are a lot of losses in a single variation for nobook, this can lead to wrong impressions on book value though. I'd like to show a counter example where nobook looks pretty smart to me: r1bqnrk1/1pp2pb1/3p2pp/p1nPp3/2P1P3/P1N1B2P/1P1N1PP1/R2QKB1R w KQ - 0 12 Stockfish nobook played 12. g4 he...
by Peter Berger
Thu Mar 19, 2015 10:18 am
Forum: Computer Chess Club: General Topics
Topic: On Opening books in 2015
Replies: 134
Views: 14677

Re: On Opening books in 2015

Simplified claim: Opening books are pretty useless these days. E.g. Stockfish don't need no book at slow time controls. I almost agree with you. However, to measure the book effect per se, one needs to depollute the measure from the time biais. ... Generally, the larger the book, the crappier it is...
by Peter Berger
Wed Mar 11, 2015 11:36 pm
Forum: Computer Chess Club: General Topics
Topic: On Opening books in 2015
Replies: 134
Views: 14677

Re: On Opening books in 2015

[quote="Laskos] I once went from game in 1'+1'' on one core to game in 5'+3'' on 4 cores, and although differences between books get a bit smaller, it's due as usual to increasing draw rate. One has to keep in mind that books are not simply successions of positions analyzed by engines, and it doesn'...
by Peter Berger
Wed Mar 11, 2015 10:53 pm
Forum: Computer Chess Club: General Topics
Topic: On Opening books in 2015
Replies: 134
Views: 14677

Re: On Opening books in 2015

<snipped> I disagree and if you build opening book correctly the book can be useful also in 3 minutes per move. I have no idea how people build opening book but the logical way to do it is simply to give program like stockfish or komodo a lot of time in every position that you want to add to the bo...