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Subject: Re: How long to do 10 full plys?

Author: Larry Griffiths

Date: 17:28:44 02/26/99

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On February 26, 1999 at 20:01:12, Stuart Cracraft wrote:

>The new GNU Chess takes about 2 1/4 minutes on a non-dedicated
>SUN Enterprise-class machine. Includes the usual full leaf
>evaluation (since exclusive pc/sq tables have been largely
>discredited as well as the usual lazy eval.)
>
>I don't see what point this test has since whoever can throw
>the most iron at it "wins".
>
>GNU 5.0 Chess Program
>Version 5.00d (17 Dec 1998)
>
>Transposition table:  Entries=256K Size=8192K
>Pawn hash table: Entries=32K Size=2048K
>White (1) : post
>White (1) : force
>White (1) : e4
>1. e4
>
>black  KQkq  e3
>r n b q k b n r
>p p p p p p p p
>. . . . . . . .
>. . . . . . . .
>. . . . P . . .
>. . . . . . . .
>P P P P . P P P
>R N B Q K B N R
>
>Black (1) : depth 10
>Black (1) : go
>Root score = -30        Phase = 0       Depth = 10
> no book.
> 1.      0      0        24  d5
> 2&    -25      0        97  d5 Nc3 dxe4 Nxe4
> 2.    -25      1       144  d5 Nc3 dxe4 Nxe4
> 3&    -28      1       495  d5 exd5 Qxd5 Nc3
> 3&      0      2       867  e5 Nc3 Nc6
> 3.      0      4      1654  e5 Nc3 Nc6
> 4&    -24      5      2265  e5 Nc3 Nc6 Nf3
> 4.    -24      7      4145  e5 Nc3 Nc6 Nf3
> 5&      0     13      8311  e5 Nc3 Nc6 Nf3 Nf6
> 5.      0     18     11087  e5 Nc3 Nc6 Nf3 Nf6
> 6&    -16     38     24524  e5 Nf3 Nf6 Nxe5 Bd6 d4 Bxe5 dxe5 Nxe4
> 6.    -16     59     41123  e5 Nf3 Nf6 Nxe5 Bd6 d4 Bxe5 dxe5 Nxe4
> 7&     -1    149    105799  e5 Nf3 Nf6 Nxe5 Nxe4 Qf3 Nf6
> 7&      0    224    159010  Nc6 Nf3 Nf6 Nc3 e5 Be2 Bb4
> 7.      0    282    196049  Nc6 Nf3 Nf6 Nc3 e5 Be2 Bb4
> 8&    -20    492    347056  Nc6 Nf3 Nf6 Nc3 d5 e5 Ne4 Bb5
> 8.    -20    799    574902  Nc6 Nf3 Nf6 Nc3 d5 e5 Ne4 Bb5
> 9&    -10   1266    901912  Nc6 Nf3 Nf6 e5 Ng4 d4 d5 h3 Nh6
> 9.    -10   2430   1753901  Nc6 Nf3 Nf6 e5 Ng4 d4 d5 h3 Nh6
>10&    -26   4386   3127413  Nc6 Nf3 e5 Bb5 Bc5 c3 Nf6 d3 Ng4 O-O
>10&    -14  10337   7390952  Nf6 e5 Nd5 c4 Nb6 c5 Nd5 Nf3 d6 d4 dxe5 dxe5
>10.    -14  13640   9769398  Nf6 e5 Nd5 c4 Nb6 c5 Nd5 Nf3 d6 d4 dxe5
>Time = 136.4 Rate=71623 Nodes=[8776563/992835/9769398] GenCnt=11519786
>Eval=[1138817/4174540] RptCnt=915 NullCut=338736 FutlCut=757941
>Ext: Chk=230000 Recap=86348 Pawn=18800 OneRep=16654 Horz=5813 Thrt=0
>Material=[3600/3600 : 4400/4400] Worst=[-92/-104]
>Hash: Success=10% Collision=82% Pawn=63%
>
>white  KQkq
>r n b q k b . r
>p p p p p p p p
>. . . . . n . .
>. . . . . . . .
>. . . . P . . .
>. . . . . . . .
>P P P P . P P P
>R N B Q K B N R
>
>
>My move is : Nf6

Stuart,

I wanted to know how my program stands at this time compared with other
programs.  I see now that I still have a lot of work to do to improve
the performance of my program.  I ask my self "What makes these other
programs run so fast".  I have asked more questions here and have found
some great things to try.

Thanks for your response.

Larry   :-0



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