Author: Uri Blass
Date: 15:52:19 10/30/00
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On October 30, 2000 at 18:29:45, walter irvin wrote: >On October 30, 2000 at 12:42:23, Uri Blass wrote: > >>On October 30, 2000 at 10:43:26, walter irvin wrote: >> >>>On October 29, 2000 at 23:15:51, Michael Neish wrote: >>> >>>> >>>>Hello, >>>> >>>>I don't really want to post another naive "How many possible Chess positions are >>>>there?" comment, but I believe that of the huge number of possible positions >>>>only a relatively small fraction are actually interesting. What I mean is, if >>>>you could count all possible piece/square permutations I suppose most of them >>>>will be materially unbalanced, with the outcome generally in favour of the side >>>>with greater material. These positions could be considered "solved". Then a >>>>small fraction of these will be materially balanced or almost-balanced >>>>positions, with an unclear outcome, and could be considered "unsolved". >>>> >>>>Does anyone know whether any estimate has been made on the proportion of >>>>unsolved to solved positions in Chess? I guess it would represent a substantial >>>>trimming of the overall game tree. >>>> >>>>Cheers, >>>> >>>>Mike. >>>you know once you subtract all the assinine positions and get right down to >>>positions that can be safely reached vs strong opposition the actual number of >>>good positions is a number that alot of pc's could actually handle.i think >>>people try to make chess seem like this great unsolvable game when in reality if >>>all the junk were thrown out ,all the good positions prob fit on a 40 gig hard >>>drive. >> >>I totally disagree. >>40 gig hard drive are not enough to save only the important 7 piece tablebases >>positions(even if you do not include positions when one side is clearly >>winning). >> >>It is possible to check it by doing a program that generates a random position >>with 7 pieces and counting the number of interesting positions. >> >>Uri >i would say you are 1000% right if it were not for one part of my statement i >said only positions that can be safely reached vs strong opposition .there are >tons of positions that are even that can not be reached vs strong opposition . I do not think that there are a lot of even positions with only 7 pieces that cannot be reached vs strong opposition. I believe that 40 Gbytes are not enough to save all the possible positions that can be reached vs strong opposition and they are even not enough to save all the 7 piece positions that can be reached. Uri
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