Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: Randomness of Crafty's book moves???

Author: David Dawson

Date: 07:37:03 05/27/00

Go up one level in this thread


On May 27, 2000 at 10:09:04, Mogens Larsen wrote:

>I tried to remove the bookc.bin, since Crafty uses it as default even without
>the computer command in my Crafty.rc. I'm not sure why. Well, I tried the
>following:
>
>Crafty v17.10
>
>White(1): show book
>show book statistics
>White(1): go
>              clearing hash tables
>  after screening, the following moves can be played
>  move     played    %  score    learn     CAP     sortv  P%  P
>    e4!    712147   47   0.15     0.00    -0.07   13127.0  60  Y
>    d4!    503991   33   0.15     0.00  -655.36   12834.7  40  Y
>   Nf3     121355    8  -0.02     0.00  -655.36    4263.4   0  Y
>    c4     113930    7  -0.17     0.00  -655.36    4223.0   0  Y
>    e3?      1651    0   0.13     0.00  -655.36     125.3   0  N
>    d3?       809    0   0.13     0.00  -655.36     124.1   0  N
>    f3?       162    0  -0.07     0.02  -655.36      95.2   0  N
>   Nc3?      4144    0  -0.02    -0.01  -655.36      92.8   0  N
>    c3?       391    0  -0.19     0.04  -655.36      83.5   0  N
>    f4?      8908    0  -0.05    -0.03  -655.36      81.5   0  N
>   Nh3?       110    0  -0.12     0.00  -655.36      73.2   0  N
>   Na3?        74    0  -0.12     0.00  -655.36      73.1   0  N
>    g3?     11758    0  -0.21     0.00  -655.36      71.5   0  N
>    b4?      8778    0  -0.20     0.00  -655.36      69.3   0  N
>    a4?       167    0  -0.19     0.00  -655.36      59.2   0  N
>    g4?      1237    0  -0.20     0.00  -655.36      58.7   0  N
>    h3?       166    0  -0.20     0.00  -655.36      57.2   0  N
>    b3?      5794    0  -0.21    -0.01  -655.36      57.1   0  N
>    a3?       599    0  -0.20    -0.08  -655.36       9.8   0  N
>    h4?       161    0  -0.19    -0.09  -655.36       5.2   0  N
>
>Nothing unusal. Then I tried adding the computer command.
>
>Crafty v17.10
>
>White(1): sh b
>show book statistics
>White(1): computer
>playing a computer!
>White(1): go
>              clearing hash tables
>  after screening, the following moves can be played
>  move     played    %  score    learn     CAP     sortv  P%  P
>    e4!    712147   47   0.15     0.00    -0.07   13109.0  60  Y
>    d4!    503991   33   0.15     0.00  -655.36   12816.7  40  Y
>   Nf3     121355    8  -0.02     0.00  -655.36    4245.4   0  Y
>    c4     113930    7  -0.17     0.00  -655.36    4205.0   0  Y
>    e3?      1651    0   0.13     0.00  -655.36     107.3   0  N
>    d3?       809    0   0.13     0.00  -655.36     106.1   0  N
>   Nc3?      4144    0  -0.02    -0.01  -655.36      76.8   0  N
>    f3?       162    0  -0.07     0.02  -655.36      73.2   0  N
>    f4?      8908    0  -0.05    -0.03  -655.36      69.5   0  N
>    c3?       391    0  -0.19     0.04  -655.36      57.5   0  N
>   Nh3?       110    0  -0.12     0.00  -655.36      55.2   0  N
>   Na3?        74    0  -0.12     0.00  -655.36      55.1   0  N
>    g3?     11758    0  -0.21     0.00  -655.36      53.5   0  N
>    b4?      8778    0  -0.20     0.00  -655.36      51.3   0  N
>    a4?       167    0  -0.19     0.00  -655.36      41.2   0  N
>    b3?      5794    0  -0.21    -0.01  -655.36      41.1   0  N
>    g4?      1237    0  -0.20     0.00  -655.36      40.7   0  N
>    h3?       166    0  -0.20     0.00  -655.36      39.2   0  N
>    a3?       599    0  -0.20    -0.08  -655.36       7.8   0  N
>    h4?       161    0  -0.19    -0.09  -655.36       5.2   0  N
>
>Exactly the same, so I don't understand your result.
>
>Best wishes...
>Mogens

This means nothing!
Where is the rest of the log file?
Since the computer command sets the width to 1, even with 20 "!" moves, crafty
will still play the same move.

Where is the line in the log file that says which book moves were actually
considered?



This page took 0 seconds to execute

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

Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.