about IPP's evaluation and search

[Uri Blass]

Did you test and find that replacing stockfish's evaluation by IPP's evaluation does not make stockfish significantly stronger?

Copy 'n paste does not work. Thank you.


Does not work with evaluation, does not work with pruning, does not work with search

Copy 'n paste _definitely_ does not work.

I did not suggest copy and paste.

It is clear that you need to change the code in order to have the same evaluation and I did not say that it is an easy task.

Uri

[zamar]

You may be right or wrong but how do you know it?

I'm just expressing my opinion.

I've examined both eval and search.

* In eval I found nothing special. Some nice tricks and stuff based on common chess knowledge (which value in computer chess is questionable). Tested some ideas, but no elo killers there...

* But search is a true masterpiece! The way it _combines_ traditional pruning/reduction/cutoff-methods is just so beautiful... When you look at it, you just get the feeling that you're looking at the true masterpiece.

[Jouni]

As non expert I think IPP's search gets almost insane depths in my slow PC! Questions to experts: there is almost 10000 lines of constants in
tables.h - are they written manually and what's they meaning?

Jouni

[Uri Blass]

As non expert I think IPP's search gets almost insane depths in my slow PC! Questions to experts: there is almost 10000 lines of constants in
tables.h - are they written manually and what's they meaning?

Jouni

I think that depth is not important because you can also have counter productive pruning.

I am not impressed by depth and I believe that it is possible to improve IPP by smart rules when not to prune.

Uri