Author: Mike S.
Date: 12:36:13 10/09/02
Go up one level in this thread
On October 09, 2002 at 14:23:03, Robert Hyatt wrote: >(...) >I've given some examples of things I've had to fix after watching GMs pick on >the same hole >over and over. Today I don't see those huge holes cause me a lot of trouble >(yes I still have >holes, to be sure, but not the building-sized holes some "tactical" programs >possess..) and I >don't particularly care if queens come off early or not. (...) I've added Crafty 18.x results from the same database: Percentages, based on a large comp-comp database: Engine | #Games total W B | total eQE* W/eQE B/eQE ------------------------------------------------------------------- Fritz 7 | 784 69% 72% 65% | 59% (#57) 53% 67% Chess Tiger 14 | 850 66% 71% 62% | 72% (#71) 73% 71% Shredder 6/-P. | 743 61% 65% 57% | 58% (#58) 63% 53% Junior 7 | 799 55% 58% 53% | 41% (#60) 25% ! 56% Crafty 18.x | 741 48% 48% 47% | 51% (#52) 51% 52% *) "eQE" = early queen exchange (within the first 10 moves) This illustrates precisely what you wrote. The eQE obviously is no threat at all for Crafty :o). The percentages are a bit higher even, similar to Tiger's, which indicates the good endgame strength (of both). (Btw. the games were against a bandwith of engines including i.e. various other top engines and freeware, not only the ones mentioned.) I think the strength of Fritz in tactics / king attack could compensate for the lesser good endgame strength, if only Kramnik would not be able to exchange queens during the book variants already, always. But I don't know if an opening book could be built, which strictly avoids variants with early queen exchanges. Maybe for the next match :o). For engines playing Black, an anti-fritz (and anti-junior) book which favours variants with queen exchanges would also be interesting IMO. I didn't find a way to generate such a book automatically (probably impossible "the easy way", because the exchanges are not directly related with the results, and also such a book must not have big holes in other "non-exchange" variants...) Regards M.Scheidl
This page took 0 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.