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Subject: Re: This Opening book of Harry is very interesting !

Author: gerold daniels

Date: 10:54:53 03/28/05

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On March 28, 2005 at 11:54:35, Jorge Pichard wrote:

>87, FQ
>
>Harry Schnapp released today a new version from his very popular Arena Mainbook.
>
> Arena Mainbook (detail page, in English and German available)
>
>This opening book isn't from a PGN file. Harry Schnapp enter each variation in
>his book by hand. He is working over one year on this opening book. Harry try to
>optimize his opening book for all available chess engines. Critical gambit
>openings wouldn't add. This opening book is really a sensation. Shredder 9.0
>produced on my PCs fantastic results with the book from Harry. If I compare the
>results with the opening book by Sandro Necchi, the book by Harry produce an
>higher Shredder performance (around 20 ELO). I will not say the book by Sandro
>isn't good but many variants Shredder like are deactivated.
>
>Example:
>ATL-2 results: Shredder is playing with Mainbook 4.5 by Harry Schnapp:
>
>Rating 1: All games from ATL-2 Systems 1 - 3 = 1460 games!
>March 26th, 2005 (21:00 MEZ)
>
>    Program                          Elo    +   -   Games   Score   Av.Op.
>Draws
>
>  1 Shredder 9.0                   : 2750   29  29   420    71.9 %   2587   31.4
>%
>  2 Gandalf 6.01                   : 2645   28  27   420    56.2 %   2602   32.4
>%
>  3 TheKing 3.33 Schumacher        : 2621   28  28   400    51.7 %   2609   31.0
>%
>  4 Ruffian 2.1.0                  : 2606   29  29   380    48.6 %   2616   30.8
>%
>  5 ProDeo 1.1                     : 2605   29  29   380    48.4 %   2616   31.6
>%
>  6 SlowChess Blitz WV             : 2560   31  31   360    40.4 %   2628   28.1
>%
>  7 SOS 5.1 for Arena              : 2547   30  30   360    38.2 %   2630   32.5
>%
>  8 Spike 0.9                      : 2530   40  41   200    31.8 %   2663   33.5
>%
>After 420 games the advantage to Gandalf 6.01 = 105 ELO !!
>This games are produced with 40 moves in 20 minutes (still running ATL-2
>tourney).
>
> ATL League (more information, games, log files and so on)
>
>On my secret ATL-2a tournament (Athlon 2.8, Centrino 1.6) with Shredder Classic
>GUI the different from Shredder 9.0 to Gandalf 6.01 is 82 ELO. After 340 games
>for each engine with the same time control 40 moves in 20 minutes. Shredder is
>playing with the opening book by Sandro Necchi. I will public this tournament
>later. Perhaps I produce other results in tournaments with Fritz, Hiarcs, Tiger
>and Junior and perhaps the opening book by Sandro is tuned against this group of
>engines. Or simply, around 400 games are not enough.
>
>FACT is:
>The opening book by Harry Schnapp is really a sensation and one of the best
>available opening books today!
>
>Update text by Harry Schnapp in German language:

good afternoon Jorge.thanks for the post. i been waiting for this one.

gerold.



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