Do SF still have troubles with 2nd repetitions ?

jhellis3 · Post by **jhellis3** » Mon Mar 23, 2015 8:32 pm

No you don't, you just merge the upstream changes into your branch.

Vinvin · Post by **Vinvin** » Mon Mar 23, 2015 8:54 pm

Joerg Oster wrote:
Vinvin wrote:
nabildanial wrote:
Vinvin wrote:
nabildanial wrote:A pull request of the fix got rejected in the past despite being favored by Gary and Marco. https://github.com/official-stockfish/Stockfish/pull/80
What a pity !
99% of chess players would think SF is really dumb to not play Nc7 in this position ...
Tell Joona that lol.
I already see the answer "SF is designed to play chess". But SF masters don't know there are 1000 more people who use SF to analyze games than people who use SF to play games ...
Here https://github.com/joergoster/Stockfish ... ae4cce5b7d you can find the necessary patch.
Insert it into the actual sources, compile, and you're done!

Thousands of chess players have to do that ??
That sounds a bit crazy ...

BBauer · Post by **BBauer** » Mon Mar 23, 2015 9:12 pm

So you need a branch.

Kind regards
Bernhard

vincenegri · Post by **vincenegri** » Mon Mar 23, 2015 9:16 pm

Vinvin wrote:
Joerg Oster wrote:
Here https://github.com/joergoster/Stockfish ... ae4cce5b7d you can find the necessary patch.
Insert it into the actual sources, compile, and you're done!
Thousands of chess players have to do that ??
That sounds a bit crazy ...

No, just one motivated one just has to do it and make the binaries and source available for others. Stockfish is open source in part so that this can happen.

carldaman · Post by **carldaman** » Mon Mar 23, 2015 9:17 pm

Vinvin wrote:
nabildanial wrote:
Vinvin wrote:
nabildanial wrote:A pull request of the fix got rejected in the past despite being favored by Gary and Marco. https://github.com/official-stockfish/Stockfish/pull/80
What a pity !
99% of chess players would think SF is really dumb to not play Nc7 in this position ...
Tell Joona that lol.
I already see the answer "SF is designed to play chess". But SF masters don't know there are 1000 more people who use SF to analyze games than people who use SF to play games ...

That's right, Vincent. Anything that seriously detracts from the analysis capabilities can't be good and is worth fixing (and possibly worth a couple of lost Elo points, right?).

jhellis3 · Post by **jhellis3** » Mon Mar 23, 2015 9:18 pm

Or you could just use Stockfish MateFinder. It is about 10 Elo weaker, but that is only due to a sometimes slower (more robust) search. I keep it updated fairly regularly.

Eelco de Groot · Post by **Eelco de Groot** » Mon Mar 23, 2015 9:18 pm

Vinvin wrote:
Joerg Oster wrote:
Vinvin wrote:
nabildanial wrote:
Vinvin wrote:
nabildanial wrote:A pull request of the fix got rejected in the past despite being favored by Gary and Marco. https://github.com/official-stockfish/Stockfish/pull/80
What a pity !
99% of chess players would think SF is really dumb to not play Nc7 in this position ...
Tell Joona that lol.
I already see the answer "SF is designed to play chess". But SF masters don't know there are 1000 more people who use SF to analyze games than people who use SF to play games ...
Here https://github.com/joergoster/Stockfish ... ae4cce5b7d you can find the necessary patch.
Insert it into the actual sources, compile, and you're done!
Thousands of chess players have to do that ??
That sounds a bit crazy ...

The problem is, I think, an aversity in the Windows community to making an effort to learn some compiling basics, and installing MinGW perhaps. But if that is no problem, I took the liberty of putting Jörg's changes into the very latest sources, so you only have to download a .zip file and then let loose a decent up to date C++11 capable version of MinGW. Daylen Yang has instructions on his site, the official Stockfish site.

The sources are here:

https://github.com/Kingdefender/Stockfi ... repetition

but maybe Jörg wants to do a similar thing. The overall changes are I think negligible from what he posted, I did not check

, just took the today Dev Stockfish and inserted the changes again, by hand.

Eelco

zullil · Post by **zullil** » Mon Mar 23, 2015 9:41 pm

Eelco de Groot wrote:, just took the today Dev Stockfish and inserted the changes again, by hand.

Eelco

Code: Select all

-  TimeMgr.init&#40;Limits, RootPos.side_to_move&#40;), RootPos.game_ply&#40;));
+  RootPly = RootPos.game_ply&#40;);
+  TimeMgr.init&#40;Limits, RootPly, RootPos.side_to_move&#40;));

Need to transpose the last two parameters for TimeMgr.init

Eelco de Groot · Post by **Eelco de Groot** » Mon Mar 23, 2015 9:55 pm

zullil wrote:
Eelco de Groot wrote:, just took the today Dev Stockfish and inserted the changes again, by hand.

Eelco
Code: Select all
-  TimeMgr.init&#40;Limits, RootPos.side_to_move&#40;), RootPos.game_ply&#40;));
+  RootPly = RootPos.game_ply&#40;);
+  TimeMgr.init&#40;Limits, RootPly, RootPos.side_to_move&#40;));
Need to transpose the last two parameters for TimeMgr.init

Thanks Louis! I hope I got it right now...

Vinvin · Post by **Vinvin** » Wed Mar 25, 2015 12:36 pm

jhellis3 wrote:Or you could just use Stockfish MateFinder. It is about 10 Elo weaker, but that is only due to a sometimes slower (more robust) search. I keep it updated fairly regularly.

Nice !
I'll go with your mod !

Can I get a compile "Windows x64 for modern computers" somewhere ?
Thanks !

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Do SF still have troubles with 2nd repetitions ?

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