Author: Jorge Pichard
Date: 05:41:58 03/29/05
Go up one level in this thread
On March 28, 2005 at 21:56:39, Arturo Ochoa wrote: >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! > >?!!????? > >Jorge Picachú returned to the Forum with new..... > >I have checked the "sensational Harry Schnapp's Book". The book is >1.780.651 moves, depth = 63 plies according to the site. Previous version was >1.552.937 moves, depth = 63 plies. > >1) Considering some limitations and known bugs of the Arena Gui to correct the >moves what makes difficult to introduce moves quickly with correct priorities. >2) Considering the significant difference in the number of moves and the short >time between releases. >3) Considering the book has saved statistics about games and the results come >from pgn files with real games. >4) Considering that if we continue checking only the first moves have >priorities. Example, after 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6, we find all thh >moves with the default priority of assigned by Arena = 5. > >Where do your facts come from? From the same ..... site where you have returned. > >> >>Update text by Harry Schnapp in German language: > >Will you be able to post something that it is really useful to read? > >Just Jorge Picachú in action... ;) > >AO. Thanks for your deep observation Arturo Octavo :-) Jorge
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