Author: Andrew Walker
Date: 22:28:53 07/27/04
Go up one level in this thread
On July 27, 2004 at 21:32:24, Uri Blass wrote: >On July 27, 2004 at 20:23:32, Andrew Walker wrote: > >>On July 26, 2004 at 17:48:32, Kurt Utzinger wrote: >> >>>On July 26, 2004 at 06:36:55, Graham Banks wrote: >>> >>>>Athlon XP2000 >>>>256mb hash each (or closest allowed by each program) >>>>3,4,5 piece tablebases >>>>All using Fritz Powerbook tournament book (maximum variety, minimum 5 games for >>>>a move to be played, no learning) >>>>40 moves in 40 minutes repeating. >>>>Ponder off >>>>Tournament run under Deep Fritz 8 GUI >>>> >>>> >> >>The review of Steve Lopez at http://www.chessbase.com/newsdetail.asp?newsid=1446 >>seems to be very strongly against using the powerbook for computer vs computer >>play. Have you looked at the openings being played to see if they are the >>types computers would want to play? This could possibly hurt Crafty and some of >>the other programs. Or does the tournament book weed out a lot of the closed >>lines? >> >>Andrew > >compters have no feeling so they have no problem with playing the opening >that you tell them. Well, they can play any opening, but the strength of the moves played when leaving the book would vary enormously. > >Computers do not hate close positions(they have no feeling) and I see no reason >for computers to prefer open position in comp-comp tournaments. The idea of feelings is not important. If program A is better than program B in tactics, then it's far more likely to be able to find an advantage in an open position than a closed position, as it can search deeper and the possibilities for exchanges, threats etc must increase. >If some programs can score better in open position then it is clear that some >programs can score better in closed positions because it is impossible that part >of the programs score better without another part that score worse. I would be very suprised if any of today's strong programs play better in closed positions. > >Maybe close positions hurt crafty relative to other programs but in this case >they must help another program and people have the freedom to test what they >want. > Again I seriously doubt they would help any program. Repeating my question, can anyone comment on the openings in the tournament powerbook as compared with program specific books such as have been developed for Shredder, Hiarcs, Junior etc? Andrew
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