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Subject: Re: Tournament update

Author: blass uri

Date: 07:55:31 01/09/99

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On January 09, 1999 at 10:09:46, Enrique Irazoqui wrote:

>On January 09, 1999 at 09:31:00, blass uri wrote:
>
>>
>>On January 09, 1999 at 09:24:47, Enrique Irazoqui wrote:
>>
>>>Rebel 10-Genius 6, 6-4. Next match, Genius 6 - Nimzo 99a.
>>>
>>>Two PII-400/256, auto232, 40 moves in 40 minutes.
>>>
>>>        H7   J5    M8   T11   F532 R10    F5  N99a   Cr   G6   TOTAL    Elo
>>>H7(*)  ---   4    3.5    4    4.5   7     8   6.5   7.5   8   53.0/90    57
>>>J5      6   ---    6    6.5   5.5   5    4.5   5    8.5  3.5  50.5/90    39
>>>M8     6.5   4    ---   5.5   3.5  5.5    5    7     7   6.5  50.5/90    39
>>>Ti      6   3.5   4.5   ---    5    6    5.5  6.5    7    6   50.0/90    36
>>>F532   5.5  4.5   6.5    5    ---   4    4.5   5     7    7   49.0/90    29
>>>R10     3    5    4.5    4     6   ---   5.5   5    5.5   6   44.5/90    -3
>>>F5      2   5.5    5    4.5   5.5  4.5   ---   4     8   5.5  44.5/90    -3
>>>N99a   3.5   5     3    3.5    5    5     6   ---   6.5       37.5/80   -14
>>>CR(**) 2.5  1.5    3     3     3   4.5    2   3.5   ---       23.0/80  -135
>>>G6      2   6.5   3.5    4     3    4    4.5             ---  27.5/70   -52
>>>
>>>(*) 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.
>>
>>It is interesting to see what are the the results of the real crafty(not an
>>engine for Nimzo99).
>
>That's why the footnote. My reason to enter Crafty was to compare a freeware
>program with the best commercials, and to some extent the clearing of hashtables
>is hurting Crafty 16.1 as a CB engime. By how much? The best way to find out
>would be to enter 16.3. Meanwhile, we can speculate a bit. Hiarcs 6 as as Fritz
>engine has the same problems of Crafty 16.1, plus the inability to allocate more
>than 8MB for hashtables. Comparing eng-eng performance with auto232, H6 gets
>some 40 to 50 Elo points more in the DOS version (no resetting of hashtables,
>etc). If we can (?) extrapolate this to Crafty...
>
>>Rebel10 is also not the best Rebel that you can get
>
>Ed Schröder would disagree very strongly with you.
>
>Enrique

I did not mean that a previous Rebel is better but that Rebel10 as an engine for
ectool is better.



These is from Rebel's site:

The CHESS-TIGER idea plus Ed's own improvements have speed up REBEL with a
factor of
                  2-3. The first results are very promising. At the playing
level of 1:00 per move REBEL scores 47½-31½
                  against various strong computer opponents.

                  For the moment the conclusion is Christophe's idea has given
REBEL an elo jump of at least 30 elo points
                  but more likely the gain in playing strength is 50 elo points
or even more. The basic idea is implemented in
                  the third party engines of:

                       Lost Boys Interactive
                       REBEL online by RoSystem
                       REBEL10 engine for ECTOOL


Uri



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