Author: Mogens Larsen
Date: 06:42:53 12/27/02
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On December 26, 2002 at 10:39:21, Uri Blass wrote: >Is there an evidence that Ruffian has an inferior book? No, I don't think there is any evidence available. But I would be rather surprised if an autogenerated book made from less than 25000 games is of the same quality as one made by a professional. Even if the most rare continuations are weeded out. One might even argue that following the most common variations is dangerous, because they should be well-prepared. Another point is the disabling of learning when used as an UCI engine, albeit the effect of the book learning isn't documented and any advantage might be insignificant. I don't know the quality of the Tiger book (+learning), so the ELO disadvantage is hard to estimate. Probably not Kure class, so between 20 and 40 ELO points as a inaccurate guess. >Did people analyze the game to find if Tiger got better positions from the >opening? The ones I've seen, which is only a few of the first games, didn't look horrendous for Ruffian. Unfortunately, you can't tell when Ruffian exited the book, ie. if the silly moves are from book or made on its own. Regards, Mogens
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