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Subject: Re: Just checked they are there (nt)

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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