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

Author: Mogens Larsen

Date: 07:09:04 05/27/00

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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



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