Author: Derek Paquette
Date: 17:44:54 12/28/04
Go up one level in this thread
On December 28, 2004 at 20:29:03, Uri Blass wrote: >On December 28, 2004 at 17:46:15, Derek Paquette wrote: > >>On December 28, 2004 at 17:26:23, Kurt Utzinger wrote: >> >>>On December 28, 2004 at 17:07:54, Derek Paquette wrote: >>> >>>>On December 28, 2004 at 15:26:16, Kurt Utzinger wrote: >>>> >>>>>Matches at 40’/40 + 40’/40 +40’ time control >>>>>Junior9-GUI, ponder=off, 3-/4-men EGTB >>>>>own books, no book learning, no learning >>>>>on 4 Athlons 1.3/64 MB hash for all engines >>>>>First defeat of Junior9 vs Shredder8 in this test. >>>>>http://www.utzingerk.com/jun9_test.htm >>>>>Kurt >>>> >>>>Kurt, Junior 9 is known as an aggressive engine, how do you find Shredder 8 >>>>handled this? Did it attack aswell or defend defend defend and then finally win >>>>in the endgame? >>> >>> >>> In my opinion there are different reasons why Shredder8 >>> won this match: the German program is very good at defence >>> - stronger than Junior9 - knows more about pawn structures >>> and plays the endgame better than Junior9 ... and some pawns >>> given away by Junior9 did not bring the expected result -:) >>> Maybe the difference between these two very strong engines >>> will become smaller at longer time controls. >>> Kurt >> >>Kurt, did you happen to notice which program was searching deeper? >> >>Junior was 'known' as being the deepest searcher, but shredder 8 changed all >>that, which searches deeper. > >Junior was never known to be the deeper searcher. > >It was always known that depth in Junior has a different meaning. >depth in shredder8 also has different meaning relative to depth in shredder7.04 >because (otherwise Shredder8 could be at least 100 elo stronger than >Shredder7.04 based on the difference on their search depth). > >Uri I realize that Shredder 8 is pruning A LOT more than shredder 7.04, but knowing that, the question would be, who is pruning the most to get the furthest ahead?
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