Finally a better Stockfish?

Jouni · Post by **Jouni** » Sun Oct 30, 2011 2:30 pm

Stockfish "111026" simply has 10% faster NPS in my PC than 2.1.1 JA, so that should give +10 ELO automatically. And possible there is also additional improvements too.

Jouni

Jouni · Post by **Jouni** » Sun Oct 30, 2011 4:52 pm

I played some fast games. 111026 scores +20 points against 2.1.1 after 200 games, but vs. Houdini it was actually worse.. OK 2000 games is there minimum

Jouni

MM · Post by MM » Sun Oct 30, 2011 5:02 pm

Jouni wrote:I played some fast games. 111026 scores +20 points against 2.1.1 after 200 games, but vs. Houdini it was actually worse.. OK 2000 games is there minimum

Jouni

Hi, i'm watching on playchess Stockfish 111030, but i cannot find a link..

Regards

Ajedrecista · Post by **Ajedrecista** » Sun Oct 30, 2011 5:17 pm

Hello:

MM wrote:
Jouni wrote:I played some fast games. 111026 scores +20 points against 2.1.1 after 200 games, but vs. Houdini it was actually worse.. OK 2000 games is there minimum

Jouni
Hi, i'm watching on playchess Stockfish 111030, but i cannot find a link..

Regards

https://github.com/mcostalba/Stockfish

https://github.com/mcostalba/Stockfish/ ... e44031d2b5

Code: Select all

Sync do_move&#40;) and undo_move&#40;)

It is not possible to unify due to the fact that the
sequence steps are reversed. What we can do is to try
to sync comments and code as much as we can to easy
reading and documentation.

No functional change.

Signed-off-by&#58; Marco Costalba <mcostalba@gmail.com>

There is no functional change, according to Costaba. I also have not found a link, but it can be compiled (not by me, of course, because I do not know).

Regards from Spain.

Ajedrecista.

Eelco de Groot · Post by **Eelco de Groot** » Sun Oct 30, 2011 5:43 pm

I believe Marco is making some code clean-ups and simplifying things where code is no longer needed. Mainly in the weekends

He always adds if there is a functional change. If there is no functional change, the output of the new engine should be 100.000% identical to the previous version. It is of course fine if this is tested now that the changes can be seen right away. But I fear a lot of people are now expecting that this are somehow stronger versions of Stockfish. That is not very likely. Everybody can read for themselves what the changes are, if you go halfway the main page and click 'history' on the right I admit I also did not find this out right away. This is the list of Marco's commits:

https://github.com/mcostalba/Stockfish/commits/master/

Click on the +- buttons after every commit to read what the change entails and if there is a functional change being made to the master branch. The functional changes are I believe mainly from CLOP tuning experiments, Remi's tool for simulated annealing, and that is limited for the moment, as far as I could see, to some changes in mobility

Regards, Eelco

mcostalba · Post by **mcostalba** » Sun Oct 30, 2011 5:57 pm

Eelco de Groot wrote:I believe Marco is making some code clean-ups and simplifying things where code is no longer needed. Mainly in the weekends

Yes, correct

It is also correct that current version should be around +20 ELO (on SMP) against 2.1.1 but not because of latest changes. It is due to some work, done mainly by Joona, some month ago. Of course this is not enough to do a new release and anyhow I am not interested at the moment. I'd just experimenting a bit with CLOP and doing small things in the weekends...

ethanara · Post by **ethanara** » Sun Oct 30, 2011 6:31 pm

So it will be able to beat Critter?

Laskos · Post by **Laskos** » Sun Oct 30, 2011 7:54 pm

Code: Select all

    Program                            Score      %      Elo    +   -    Draws

  1 Stockfish 111026 64bit         &#58; 524.5/1000  52.4    3209   16  16   46.1 %
  2 Stockfish 2.1.1 JA 64bit       &#58; 475.5/1000  47.5    3191   16  16   46.1 %

The new version is 18 +/- 8 Elo points stronger 68% confidence. On my comp it's ~8% faster and going ~1.5 plies deeper.

Kai

Ajedrecista · Post by **Ajedrecista** » Sun Oct 30, 2011 7:57 pm

Hello again:

I have just found a compilation of Stockfish 111030:

http://www.chess2u.com/t4410p45-stockfish-01#27006

http://www.mediafire.com/?3m6bkanv643gbef

(Post #51). Enjoy!

Regards from Spain.

Ajedrecista.

MM · Post by MM » Sun Oct 30, 2011 8:23 pm

Ajedrecista wrote:Hello again:

I have just found a compilation of Stockfish 111030:

http://www.chess2u.com/t4410p45-stockfish-01#27006

http://www.mediafire.com/?3m6bkanv643gbef

(Post #51). Enjoy!

Regards from Spain.

Ajedrecista.

Hi, thank you.

It is much slower than 2.1.1

Finally a better Stockfish?

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