Author: Ricardo Gibert
Date: 14:38:20 10/09/02
Go up one level in this thread
On October 09, 2002 at 17:26:47, Mike S. wrote: >On October 09, 2002 at 16:58:46, Ricardo Gibert wrote: > >>On October 09, 2002 at 15:36:13, Mike S. wrote: >>>(...) >>>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) > >>(...) >>Like I indicated in my other post, you can't really draw any reasonable >>conclusions from these statistics. Too many variables are unaccounted for. > >The figures *themselves* are the information (and don't require >interpretations/assumptions at first). IOW, factual like: Junior 7 scored 55% in >that databse in total, and 41% when queens were exchanged early. > >So unless somebody finds another large game collection which gives much >different figures, I draw the conclusion that Junior 7 achieves a much worse >score without queens, at least with white (58%/25%). Isn't that reasonable? No, because it does not explain how color can be a significant variable. It shouldn't be, but since it seems to be, you can't trust the conclusion. Something funny is going on that needs to be explained before you can get anywhere with this. > >But of course the next thing you think about is: What *could* be the reason? >There are i.e. testsuite results which indicate that Tiger 14 and Crafty 18 >indeed are relatively better in the endgame, compared to their other strengths, >and for Junior 7 vice versa. > >Regards, >M.Scheidl
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