Search found 4004 matches

by syzygy
Mon Apr 09, 2012 7:29 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Evaluation speedup or (dynamic evaluation)
Replies: 10
Views: 2109

Re: Evaluation speedup ; dynamic evaluation

bob wrote:How is that going top work when you can promote TO a bishop in the search.
Good point. So the idea of changing the evaulation code at the root is of very limited value. Doing it dynamically during the search is very likely more expensive than what is done now.
by syzygy
Sun Apr 08, 2012 1:23 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Evaluation speedup or (dynamic evaluation)
Replies: 10
Views: 2109

Re: Evaluation speedup ; dynamic evaluation

In principle what you propose is of course possible. For example, at sufficiently long time controls it might even pay off to dynamically compile at the root node the evaluation function with only those features that might still apply (so leaving out bishop code if all bishops have already been capt...
by syzygy
Sun Apr 08, 2012 2:50 am
Forum: Computer Chess Club: General Topics
Topic: We should reconsider the value of the Queen.................
Replies: 48
Views: 4791

Re: We should reconsider the value of the Queen.............

You made a good point, and I have to reconsider since I am in the process of making pieces evaluation changes based on the stage of the game, sure enough 40 moves doesn't determine that the game has reached the endgame, but only how many pieces are left will make the determination. PS: Thanks :wink...
by syzygy
Sun Apr 08, 2012 1:14 am
Forum: Computer Chess Club: General Topics
Topic: We should reconsider the value of the Queen.................
Replies: 48
Views: 4791

Re: We should reconsider the value of the Queen.............

Some of you might be correct and I am not saying that the value of the Queen is too high, all that I am saying is that after the middlegame around move 40 or starting the endgame the value of the Queen disminish and it should not be left with the same value throughout the game. The relative value o...
by syzygy
Mon Apr 02, 2012 9:39 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: More questions that are on my mind...
Replies: 7
Views: 1563

Re: More questions that are on my mind...

Most the articles I read about Null Moves it mentions that you will skip your turn and have the opponent play a 2nd move. Can this be applied reverse? (i.e. you skip your opponent move and you play a 2nd move) If I understand you correctly (but maybe I don't), by "opponent" you mean the side that i...
by syzygy
Tue Mar 27, 2012 12:05 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Rodent 0.12
Replies: 23
Views: 3482

Re: Rodent 0.12

Add to that, usually they give support for hardware and software that they simply do not have themselves. Try to give support for a hardware component you have never ever seen in your life :) Reminds me of the North Korean software developers writing iPhone apps ;) So i have 2 confirmations of it w...
by syzygy
Mon Mar 26, 2012 10:01 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Rodent 0.12
Replies: 23
Views: 3482

Re: Rodent 0.12

while gettickcount does give you milliseconds precision, it's very accurate milliseconds precision, which effectively is more accurate than linux microsecondsprecision in GetTimeOfDay; for the simple reason that windows kernel is in assembler and this is just moving the register to the user functio...
by syzygy
Mon Mar 19, 2012 10:27 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Cutting power by software - what device do i need?
Replies: 24
Views: 2414

Re: Cutting power by software - what device do i need?

... and what happens if you try issuing a "shutdown -h now" ? That's not a problem as i'm there then. The real problem is when i'm asleep that the cheapo 12 volts adapter that runs fans of a precious Mellanox component, that it breaks. I think the question is what happens if you let a script issue ...
by syzygy
Mon Mar 19, 2012 7:41 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Stockfish port to C# Complete
Replies: 73
Views: 9554

Re: Stockfish port to C# Complete

Is there like a percentage of copied code that warrants a license? I have googled a bit but didn't found a specific case about porting from a GPL source to another language and use it in a web site, the common opinion is that is anyhow a derived work and is somehow "published" (see http://www.gnu.o...
by syzygy
Sun Mar 18, 2012 7:10 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Stockfish port to C# Complete
Replies: 73
Views: 9554

Re: Stockfish port to C# Complete

Hum, I'm getting mixed views here. I've paid to have SF translated. Am I obligated to release my code or not? I said I would but is it necessary for compliance purposes? Unless you have a license from the copyright holders of SF, you may not release a modified version of SF. A ported version is suc...