Author: Uri Blass
Date: 05:42:50 03/26/02
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On March 26, 2002 at 08:37:28, Uri Blass wrote: >On March 25, 2002 at 19:49:40, Tom Kerrigan wrote: > >>On March 25, 2002 at 12:50:57, Uri Blass wrote: >> >>>Gerbil is clearly more complicated than tscp and gerbil >>>is also clearly better than tscp. >>>Gerbil is using hash tables and ponder when tscp does not. >> >>Searching faster/deeper via hash tables and pondering does not necessarily make >>it better. Last I checked, Gerbil relied entirely on piece/square tables. It >>wouldn't surprise me if TSCP does enough evaluation to beat piece/square table >>programs (unless it's getting ridiculously outsearched). >> >>-Tom > >Piece square table with better search rules and hash tables >and pondering is enough to beat tscp. > >The truth is that I have a piece square table program that >is better than tscp without hash tables, pondering or null move > >It is using futility pruning and better time management and >better order of moves than tscp and few extensions that >tscp does not use but I have no doubt that >the search rules can be improved significantly and not only >by null move pruning and more pruning rules but by better extensions). > > >My latest program has some more knowledge in the evaluation >but based on tests that I did it is probably >only slightly better than the piece square table version. > >I believe that tscp at depth x is weaker then modified tscp >at depth x+2 when the modified version has only >piece square table evaluation and x is not important. > >Maybe someone can test both versions against different programs >in order to find out. > >Uri I can add that claiming that gerbil is clearly better than tscp was based on results of the tournament of Leo see the history pages of http://home.hccnet.nl/leo.dijksman/index.html Gerbil scored 21.5/28 when tscp scored only 13/28 Uri
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