Author: Sandro Necchi
Date: 23:35:06 12/13/05
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On December 13, 2005 at 19:04:41, stuart taylor wrote: >On December 13, 2005 at 15:28:01, Sandro Necchi wrote: > >>On December 13, 2005 at 14:53:39, Albert Silver wrote: >> >>>On December 13, 2005 at 13:23:45, Sandro Necchi wrote: >>> >>>>Hi Albert, >>>> >>>>so this is the match you asked: >>>> >>>>Rybka 1.0 - Fritz 9 >>>> >>>>PN: >>>> >>>>1. 90 minutes each player on 2 identical computers...max 110 moves >>>>2. Rybka playing with Rybka1.bkt prv-b (updated book after the previous match). >>>>3. Fritz 9 playing with own book. >>>> >>>>game one started... >>>> >>>>Sandro >>> >>>Excellent. Look forward to the games and result. >> >>1 - 0 Fritz 9 got checkmated >>> >>> Albert Hi, > >You mean straight whilst still in your opening book? (if so, even old lang >program would do it on an XT!) Well, no. The commercial books are made to bring playable lines to the program and to include a lot of alternatives not to bore the owner. The basic idea is to give positions that the program would be able to play well in general, known and played by human players too, but including a lot of alternatives this becomes true maybe 50% of the time. To reduce the weaker positions there is the tournament mode which will play mostly the better ones, but still having to include alternatives it means to include weaker moves too. This means that they would help the program but not too much if the opponent is stronger. This is why I was surprised of the very good score out of 4 games. >Oh! anyway, so as far as you tested, it was 14.5 - 5.5 to Rybca vs.Toga? So Toga >did actually start picking up! No exactly. The score was moving from 69% to 70.5% depending on the openings. There were some openings Rybka did not play well as the program did not know what to do. Again Toga II 1.1a is not a weak program and perfect 9v.ctg not a bad book. Now, since Fritz 9 is a later product that Shredder 9 it is possible that the book has been optimized on Shredder 9 book too, so the score may suffer from this... I will advise the score after 20 games or more... >S.Taylor Sandro
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