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Subject: Re: Tournament update(about crafty)

Author: blass uri

Date: 22:41:36 01/12/99

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On January 13, 1999 at 00:51:36, blass uri wrote:

>
>On January 12, 1999 at 06:24:20, Enrique Irazoqui wrote:
>
>>Hiarcs 7 - Shredder 3, 6-4. Next match, Shredder 3 - Junior 5.
>>
>>Two PII-400/256, auto232, 40 moves in 40 minutes.
>>
>>        H7   J5    M8   T11   F532 R10    F5  N99a   G6   CR   S3   TOTAL    Elo
>>H7(*)  ---   4    3.5    4    4.5   7     8   6.5    8   7.5   6   59.0/100   57
>>J5      6   ---    6    6.5   5.5   5    4.5   5    3.5  8.5       50.5/90    41
>>M8     6.5   4    ---   5.5   3.5  5.5    5    7    6.5   7        50.5/90    41
>>Ti      6   3.5   4.5   ---    5    6    5.5  6.5    6    7        50.0/90    37
>>F532   5.5  4.5   6.5    5    ---   4    4.5   5     7    7        49.0/90    30
>>R10     3    5    4.5    4     6   ---   5.5   5     6   5.5       44.5/90    -2
>>F5      2   5.5    5    4.5   5.5  4.5   ---   4    5.5   8        44.5/90    -2
>>N99a   3.5   5     3    3.5    5    5     6   ---   5.5  6.5       43.0/90   -12
>>G6      2   6.5   3.5    4     3    4    4.5  4.5   ---   4        36.0/90   -61
>>CR(**) 2.5  1.5    3     3     3   4.5    2   3.5    6   ---       29.0/90  -114
>>S3      4                                                     ---   4.0/10   -24
>>
>>(*) A beta version of Hiarcs 7 with an alpha opening book played in the matches
>>against Junior 5, Tiger 11.7.5, Mchess 8, Rebel 10 and Fritz 5.
>>
>>(**) Crafty 16.1 is playing as an engine for Nimzo 99. Because of a bug in the
>>interface, Crafty clears its hashtables after every move it makes and therefore
>>it is playing handicapped in this tournament.
>>
>>Enrique
>
>I think that crafty cannot use tablebases and this is another reason that it is
>handicapped.
>
>Uri
I  am sure that crafty could not use tablebases in the way it knows (otherwise
it would not go for a lost KRP vs KR and understand only after trading rooks
that it is losing)

Another question:
Did you tell crafty that it is playing a computer opponent.

In the following position against hiarcs7(game 180)
crafty's evaluation was 0.33
4rk2/5R1R/1P6/P1p5/3r3P/8/6PK/3q4 b - - 0 1

I found it strange because it is an obvious draw.

I tried crafty15.18 as an engine for fritz5 and if I tell it computer opponent
the evaluation becomes 0.

If I give it human opponent in the engine parameters then the evaluation in the
game is 0.33 advantage for white.
and if I give it as a position without a game the evaluation againsta human
opponent is 0.66

Uri



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