Author: Russell Reagan
Date: 10:24:23 06/19/04
Go up one level in this thread
On June 19, 2004 at 00:46:53, Keith Evans wrote: >On June 18, 2004 at 23:24:53, Ed Trice wrote: > >> >>> >>>I would think that your own lawyer would advise you to stop posting. >>>Seriously. >> >>Then stop thinking. You are not well suited to the task. > >Interesting that you would use such statement to insult the guy who helped you >get CapaGnu running when you failed to do so on your own. Keith, you have to remember who you are dealing with. Ed speaks from a position of someone who has done his research and knows what he is talking about. However, he makes misleading and false statements that indicate that he actually knows very little about what he talks about. Take a look at his webpage describing his Gothic Chess program. http://www.gothicchess.org/gv_release.html He has, of course, edited this since I began pestering him some time ago about his incorrect facts. "...an Array Move Generator is usually slower than a Bitboard Move Generator." Of the hundreds of computer chess programmers that I have ever had discussions with, including multiple commercial authors, Ed Trice is the only one who I have heard give this opinion. Even Dr. Hyatt, a bonafide expert on bitboards, would not make this claim, given 32-bit machines. In fact, he has said the opposite many times. A bitboard move generator is slower than an array based move generator. Where bitboards make up ground and "break even" with the array based approach on 32-bit hardware is in position evaluation. I have written many dozens of chess engines using many different board representations, and never has an efficient bitboard implementation surpassed an efficient array/offset implementation. "What is needed is an 80-bit emulation core, and this is very difficult to design." I can't imagine why this would be "very difficult", other than the programming ability of the author. Of course, to someone who is uninformed, this makes Ed look like a very intelligent person. "Gothic Vortex is capable of performing very deep searches in only a matter of seconds!" Wow! Gothic Vortex must be the only program that can do this! At least, that's what an uninformed person will end up thinking. Some of the gems that he has since edited were regarding Gothic Vortex beating and outperforming Zillions of Games. Zillions of Games is a generic game playing program that can play any board game you teach it to play. It is not a suprise that this kind of program would fail miserably against a program written specifically for one game. Ed has since removed this portion of his webpage. I wonder why? Why not put it back for all to read? Or are you, Ed, now of the opinion that any comparison with Zillions of Games only reveals your own ignorance? That didn't stop you before from shouting false statements from the mountain top. You make statements that you think no one will be able to refute, and retract them later when you actually do your homework. There is a pattern here. Why should we buy anything else that you say in an equally cavalier fashion?
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