Author: Mogens Larsen
Date: 04:57:27 10/29/03
Go up one level in this thread
On October 28, 2003 at 21:46:57, Vincent Diepeveen wrote: >the matter is not whether sjeng is better in 1.d4 or 1.e4 only, >the matter is that the 1.d4 book for sjeng is also very bad prepared. >I can compare some lines it plays with 1.d4 with the Arturo book and see >clearly that there a lot of lines played are not exactly very good. Basically there are two options. Either build a new repetoire for Sjeng or try to adopt the book(s) used by Rebel and Tiger. I would probably prefer the former option even though it is a time consuming method. Probably more rewarding if the engines differ significantly in preferences. Either way, I'm sure that something was prepared with 1.e4 and it seemed like a good opportunity to test it. Especially if the opponent isn't a top engine. >Then we see great lines played by the books used by rebel + tiger, which is very >undeniable. > >So i'm not saying that what Sjeng used is worse than a random PGN book or >whatever, but i'm noticing that what's used for Rebel + Tiger (2 completely >different styles of engines) is very similar and much better than the total >different book used for Sjeng. OTOH, it would be even more suspect if the same book was used for all three engines. There should be credit for developing different books. It's the inability to learn from the games, I focus on. >Though i commercially can understand the idea, from sportive viewpoint i find it >very disgusting. As mentioned by Hyatt in a different subthread, a bookauthor responsible for more than one engine is inherently suspect. There is too much room for shenanighans. >VERY VERY VERY DISGUSTING, especially if you hear leaked out scores of dual >sjeng when playing tiger (when it is equipped with the same book like sjeng). Well, leaked scores are as reliable as astrology. The Tiger strength is stagnating, so I wouldn't be surprised if Deep Sjeng becomes the strongest Lokasoft engine in a not too distant future. Regards, Mogens
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