Stockfish 2.3 update available

[Eelco de Groot]

My current elo gain at 15" for 2.3 is 18, which implies around 12 or so at blitz levels. But this is with a speedup on Linux (about 8% now). So I'll be surprised if SF 2.3 shows even +10 on Windows if you show a decrease in NPS. As you say, we'll see. Frankly we were hoping for a bigger gain by SF, as currently only Ippo-related programs are close to Komodo at hyperbullet speeds, and we could use an unrelated opponent closer in strength for testing.

You could well be right, I guess we will see in a few days as results come in. FRC can be a little different too. But I can't run FRC at the moment due to the bug.

Stockfish 'Barracuda' has Marco's latest Chess960 fix and is compiled as /MT so should not need any additional .dlls But it is just my own slow 32-bit version, compiled with ancient MSVC 2005 and no profiling is done. It is available now on the Toga Developers Discussion Board with a minimally changed source, to include Marco's latest fixes, not much of a change log yet, for that I for now refer to TalkChess again. I don't think there will be more Stockfish 'Barracuda's, it is better to just keep one Rainbow Serpent.
No need to include this one in any ratinglists but you can test Chess960 with it

Regards, Eelco

[Laskos]

2.5s + 0.04s games on one core

Code: Select all

    Program                            Score      %      Elo    +   -    Draws

  1 Houdini 1.5a x64              : 1419.5/1800  78.9    3368   17  17   18.8 %
  2 Komodo 5 64-bit                : 963.0/1800  53.5    3215   14  14   25.2 %
  3 Stockfish 2.3 JA 64bit         : 652.5/1800  36.2    3123   14  14   28.5 %
  4 Stockfish 2.2.2 JA             : 565.0/1800  31.4    3095   14  14   26.7 %

28 +/- 14 Elo points improvement with 3 different opponents. Means 10-15 points at blitz TC, confirming the first test.

Kai

[Modern Times]

Stockfish 'Barracuda' has Marco's latest Chess960 fix and is compiled as /MT so should not need any additional .dlls
Regards, Eelco

Yes, this runs and does not crash with the FEN example that caused the crash in the official release.

[gladius]

28 +/- 14 Elo points improvement with 3 different opponents. Means 10-15 points at blitz TC, confirming the first test.

Thanks Kai! Will be quite interesting to see how it does at longer TC.

[Uri Blass]

2.5s + 0.04s games on one core

Code: Select all

    Program                            Score      %      Elo    +   -    Draws

  1 Houdini 1.5a x64              : 1419.5/1800  78.9    3368   17  17   18.8 %
  2 Komodo 5 64-bit                : 963.0/1800  53.5    3215   14  14   25.2 %
  3 Stockfish 2.3 JA 64bit         : 652.5/1800  36.2    3123   14  14   28.5 %
  4 Stockfish 2.2.2 JA             : 565.0/1800  31.4    3095   14  14   26.7 %

28 +/- 14 Elo points improvement with 3 different opponents. Means 10-15 points at blitz TC, confirming the first test.

Kai

I do not think that it is possible to know about the difference at longer time control based on the difference at very fast time control.

There are changes that scale better and there are changes that scale worse.

[MM]

I am sorry, perhaps someone has already reported that. Anyway i've just dowloaded (again) from the stockfish site the 2.3 64 bit JA ss4.2, i ran a match at chess960 at hyper-bullet and after around 90 games 2.3 crashed (it simply stopped running).

Stockfish 2.3 JA 64bit SSE4.2 caused an exception, game stopped.

Best Regards

[Paloma]

waiting for the fix

http://www.talkchess.com/forum/viewtopi ... 27&t=45163

[MM]

waiting for the fix

http://www.talkchess.com/forum/viewtopi ... 27&t=45163

Sorry,

thank you

Best Regards

[rabbits]

Jim I have downloaded Stockfish onto my computer but can't get it up and running.Any thoughts? My computer is operating with Windows XP and has Rybka 4 on it as well.
Al

[Jim Ablett]

Jim I have downloaded Stockfish onto my computer but can't get it up and running.Any thoughts? My computer is operating with Windows XP and has Rybka 4 on it as well.
Al

Hi Allan,

PM me with full details of your problem including computer spec, chess gui etc.

Jim.