Anyone interested in possible Stockfish settings?

[LucenaTheLucid]

They seem to give a SLIGHT bump in playing strength. Maybe 5 ELO or so, does anyone want to test and confer with my results?

Settings:

Code: Select all

Mobility (Middle Game)--------103
Mobility (Endgame)------------101
Pawn Structure (Middle Game)--98

Everything else default.

Results of a self play test:

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    Program                          Elo    +   -   Games   Score   Av.Op.  Draws

  1 Stockfish 2.0.1 Lucena 1       : 2677   16  16   648    52.5 %   2659   64.2 %
  2 Stockfish 2.0.1                : 2659   16  16   648    47.5 %   2677   64.2 %

Results of a gauntlet (note default settings games are being played as I type this):

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4 Stockfish 2.0.1 Lucena 1  : 2707  936 (+413,=289,-234), 59.6 %

Critter 0.90                  : 134 (+ 46,= 52,- 36), 53.7 %
Deep Rybka 4                  : 134 (+ 41,= 45,- 48), 47.4 %
Houdini 1.5a                  : 134 (+ 19,= 36,- 79), 27.6 %
Naum 4.2                      : 134 (+ 61,= 45,- 28), 62.3 %
Spike 1.4                     : 134 (+ 61,= 52,- 21), 64.9 %
Zappa Mexico II               : 133 (+107,= 23,-  3), 89.1 %
Komodo 1.3                    : 133 (+ 78,= 36,- 19), 72.2 %

5 Stockfish 2.0.1           : 2695  350 (+152,=102,- 96), 58.0 %

Critter 0.90                  :  50 (+ 12,= 17,- 21), 41.0 %
Deep Rybka 4                  :  50 (+ 11,= 23,- 16), 45.0 %
Houdini 1.5a                  :  50 (+  7,= 17,- 26), 31.0 %
Naum 4.2                      :  50 (+ 20,= 17,- 13), 57.0 %
Spike 1.4                     :  50 (+ 27,= 12,- 11), 66.0 %
Zappa Mexico II               :  50 (+ 41,=  6,-  3), 88.0 %
Komodo 1.3                    :  50 (+ 34,= 10,-  6), 78.0 %

[jmartus]

what were the rest of the test results?

[jmartus]

bump

[jmartus]

anyone know if these setting are improvements?

[LucenaTheLucid]

Hello Joel,

Sorry I have never noticed this thread keeps getting bumped. I'll have to dig up old test results.

I posted the results on OpenChess, please look here:

http://www.open-chess.org/viewtopic.php?f=4&t=1079

I think at the end I came to the conclusion that they do not give any extra playing strength.