Author: Moritz Berger
Date: 05:28:24 10/11/98
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On October 11, 1998 at 07:12:58, blass uri wrote: >>Finally, my educated guess (as promised ...): >>Fritz 5 on P120 with 32 MB hash tables - about 2500 SSDF ELO > >This rating is based on learning. No, it isn't entirely based on learning. I played about a hundred games from Dirk Frickenschmidt's "Play The Game" positions and some from positions of my own choice, without any books at all. Plus a lot of Nunn-tests, but I don't know if you will readily discount these results. Additionally, I played dozens of games at faster time controls on chess.net and ICC. Finally trying to appease you, I should mention that I built a tree from about 1000 Anand games taken from CB Mega Database '98 and Fritz still scored EXTREMELY well against all kind of opponents (yes, also right from the start of each "match" :-)). Just try it yourself: Play an engine match with "Anand" book for Fritz5 and "PowerBook" for Fritz5. "Anand" will not perform much worse... I think you're putting to much emphasis on books and learning. The Fritz 5 engine itself is really strong and can compensate for almost every "book deficit". Even using the old Fritz3 or Fritz4 .fbk books without any learning (<200KB each) or converting books from Rebel, Genius or Chessmaster to Fritz trees will produce decent results for Fritz. The tree offers more in terms of education, statistics and learning, but if you're not willing to give it MBs on your HD, that's also a reasonable choice. Moritz P.S.: Since Fritz doesn't do "inclusive learning", i.e. it doesn't learn new moves but just changes weights after each game, I recommend to "import" (not merely learn) games into the book after you played against strong opponents at significant time controls (i.e. at time controls where you will be using the book in the future). This helps Fritz to build its own book, e.g. starting from the aforementioned Anand (or Fischer or Kasparov or Capablanca...) repertoire. No, I didn't do this in my computer-computer matches. Yes, I recommend doing this if you start with a very small book.
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