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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