Author: Uri Blass
Date: 04:54:07 06/06/03
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On June 06, 2003 at 07:06:41, Drexel,Michael wrote: >On June 06, 2003 at 06:15:36, Ryan B. wrote: > >>Making a strong opening book may not be so high on his to-do list at this time. >>I don?t see how where he is from has anything to do with his opening book. The >>best of the free programs not named rebel 12 I have seen just generate an >>opening book from pgn files such as gm2600.pgn This way of making an opening >>book requires no actual chess skill and defiantly in no way discriminates based >>on ones home land. > >And such books are definitely weak. The Ruffian book is relatively weak for >example. Ruffian book seems to be very good based on Ruffian results in Leo tournament. Ruffian got 79% against programs that include 2 proffesional programs(Gandalf and Nimzo) Ruffian scored 3.5-.5 against Gandalf in that tournament. It may be interesting if some program can take the first place from Ruffian. I am sure that Deep sjeng is going to try but I even doubt if it can get 79% against weaker programs in the 1st division. It has now 19.5/24 that is more than 79% but it still did not play against the best programs of the first division(Aristarch and delfi). If you claim that Ruffian's book is bad for Ruffian then you need to prove that Ruffian can get better results when it plays in conditions that are similiar to the nunn match against opponents. I did not see a proof for it. I even saw claims that Ruffian scores only 35% against the top programs in conditions that are similiar to the nunn match. Note that I do not know a proof that these claims are correct when Ruffian plays under winboard and I suspect that it is possible that Ruffian is simply handicapped by using another gui. Uri
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