Author: Jonas Cohonas
Date: 19:24:01 12/13/01
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On December 13, 2001 at 17:36:12, Louis Fagliano wrote: >On December 13, 2001 at 17:03:11, Jonas Cohonas wrote: > >>On December 13, 2001 at 17:00:12, Jonas Cohonas wrote: >> >>>On December 13, 2001 at 15:38:40, Louis Fagliano wrote: >>> >>>>In three games with White in the Deep Junior 7_Dual v Fritz 7a match, Fritz7a >>>>played: >>>> >>>>1. d4 d5 2. Na3??! >>>>1. d4 d5 2. b3?! >>>>1. d4 d5 2. h3??! >>>> >>>>Surely these moves can't be in new Fritz7.ctg opening book, can they? >>> >>>I was surprised to see thme too, but they were played none the less, and i was >>>using the Fritz7.ctg so they must be in there. >>> >>> >>>Regards >>>Jonas > > >O.K. but what is the percent chance that Fritz will play those moves? If you >use book options by hitting the F4 key you can change the variety of play and >Fritz will assign a much lower percentage of "fringe" book moves as you lower >the variety of play. > >In fact in the book options dialog box you can click on either OPTIMISE or >NORMAL. Clicking on NORMAL increases the percent chance that Fritz will play an >"offbeat" book move. If you click on OPTIMISE the percent chance that Fritz >will play many minor off-shoots to the main book lines simply drops to zero. > >Therefore, what were the settings that the book options (by using the F4 key) >that were used? Normal or optimise? I always have the books on optimize, so maby there is a bug here. I just checked the scores when out of book for these "offbeat" openings: 1: 1d4 d5 2Na3 Bf5 -0.02 (1/2-1/2) 2: 1d4 d5 2b3 Bf5 -0.16 (0-1) 3: 1d4 d5 2h3 Nc6 +0.03 (1-0 Those scores are actually not better or worse than other more played openings, and the results are ok i guess. But i am sure that they are not intended as "standard" openings, therefore i am a bit puzzled by this and are inclined to write it off as a bug in the OB. Regards Jonas
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