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Subject: Fruit 2.1 tuning tests after 1120 blitz games

Author: Marc Lacrosse

Date: 11:54:26 07/08/05


Hi all !

I just continued with my series of Fruit 2.1 tuning tests at 180+1 (3minutes + 1
sec per move) blitz rate.
This time I added Fruit 2.1 (default setting) playing with Dan Corbit's book for
an actual grand total of 1120 games played.

Results :
- a strong trend according which Dan's opening book is better than my "MLCB4003"
and "Nag09" ones by +- 25 Elo points.
(congrats, Dan!)
- a confirmation of the slight superiority of my "ML02" UCI parameters over
Fruit's default parameters by +- 29 Elo points.

Next step is evident :
Fruit 2.1 + ML02 params + Dan's book against the field !
I also intend to add other engines : Gandalf 6.0 and ProDeo 1.1 will soon be
included.

Marc

  Program                Elo   +   -   Games   Score   Av.Op.  Draws   TOTAL

1 DS9UCI-Def-MLCB4003  : 2779  36  36   280    62.7 %   2689   24.6 %  175.5
2 F21-ML02-MLCB4003    : 2726  34  34   280    54.3 %   2696   31.4 %  152.0
3 F21-Def-DCbook       : 2722  32  32   280    53.6 %   2697   37.1 %  150.0
4 F21-Def-MLCB4003     : 2697  33  33   280    49.5 %   2700   33.2 %  138.5
5 F21-Def-Nag09        : 2697  33  33   280    49.5 %   2700   33.2 %  138.5
6 CM10Ber-Def-MLCB4003 : 2678  35  35   280    46.4 %   2703   27.9 %  130.0
7 K7a-Def-MLCB4003     : 2666  35  35   280    44.5 %   2705   25.4 %  124.5
8 F21-Def-NoBook       : 2636  34  35   280    39.6 %   2709   30.7 %  111.0

Games        :   1120 (finished)

White Wins   :    465 (41.5 %)
Black Wins   :    314 (28.0 %)
Draws        :    341 (30.4 %)
Unfinished   :      0

White Perf.  : 56.7 %
Black Perf.  : 43.3 %


PS : Test conditions :

PentIV 2.2 Ghz 1024 MB ram or Centrino2 2Ghz 2048 MB ram
Winboard 4.2.7a + Polyglot 1.3 (+WB2UCI for CM10)
128 MB - no TB - ponder off
3 minutes base + 1'' per move

DS9UCI = Deep Shredder 9 UCI
F21 = Fruit 2.1
CM10Ber = ChessMaster 10 with Jason Kent's Berean 5.53 personality
K7a = Ktulu 7a

MLCB4003 : a medium size book from quality correspondence games
DCbook : Dan Corbit's book
NAG09 : a very small book adapted from my personal correspondence
        competition repertoire
NoBook : would you guess ?

Def : default UCI engine parameters
ML02 : my presently best tuning for fruit at blitz :

NullMove Pruning=Always
NullMove Reduction=3
Verification Search=always
Verification Reduction=5
History Pruning=true
History Threshold=100
Futility Pruning=false
Futility Margin=115
Delta Pruning=true
Delta Margin=80
Quiescence Check Plies=2
Material=96
Piece Activity=130
King Safety=90
Pawn Structure=110
Passed Pawns=120




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Last modified: Thu, 15 Apr 21 08:11:13 -0700

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