Author: William Penn
Date: 22:45:42 01/03/06
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On January 03, 2006 at 09:44:25, Dr. Wael Deeb wrote: >Hi to all, > >http://www.exactachess.com/modules.php?name=Downloads&op=getit&lid=28 > >The opening book is about 74 Mb unzipped.... >This is my contribution for the computer chess community for the year 2006! >A special dedication for Graham Banks and Majd Al-Ansari :-) >Enjoy and be happy, >Dr.Wael Deeb Thanks, but I downloaded it, and it doesn't work correctly in my CB GUI from the Shredder 8 CD. The number of games is incorrect, at least in the lines I tried. Instead of decreasing to 0 games as the lines proceeds to greater move numbers, the number of games remains high in the region of 4000. Also the percentages are flat, showing a flat 50% after awhile. Perhaps I don't understand the purpose of the book. But I have many other .ctg books, and have prepared many .ctg books myself, and yours doesn't behave like anything I've seen before!? I see 83172 games in ibase+.ctg in the starting chessboard position. The number of games N decreases normally for the first few moves in the following opening line: 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nb5 d6 6. c4 Nf6 7. N1c3 a6 8. Na3 Be7 9. Be2 O-O * In the final position here it still shows N=4176 games: 1378 1-0, 1423 1/2-1/2, 1375 0-1. That is at least 3x more than is possible even if you used the largest chess database in the world to prepare the book!? My largest personal database of 3.5 million games has only 1374 games in the final position here. WP
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