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Subject: Re: Blunder in Fritz 6 book

Author: Mogens Larsen

Date: 15:08:36 02/07/01

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On February 07, 2001 at 17:49:22, James T. Walker wrote:

>This is the second blunder I have found in Fritz 6 book "General.ctg".  I am
>currently playing manual matches with Rebel Century 3.0 vs other top programs in
>an attempt to determine the damage caused by the auto232 operation.  This game
>is # 20 in the manual entry games.  I have already played 20 auto232 games of
>Rebel vs Fritz.  The move 18....Qd3 is unreal as it loses the Queen immediately.
> Rebel was out of book when it played 18 b3 and expected 18....Qd5.
>
>[Event "Blitz:60'/Athlon 900 TB/256M "]
>[Site "?"]
>[Date "2001.02.07"]
>[Round "20"]
>[White "Rebel Century 3.0"]
>[Black "Fritz 6e"]
>[Result "1-0"]
>[ECO "D49"]
>[Annotator "10.69 manual"]
>[PlyCount "40"]
>[EventDate "2001.02.07"]
>
>{128MB, general.ctg. Athlon 900 TB/256M
>} 1. d4 {0} 1... d5 {0} 2. c4 {4} 2...
>c6 {0} 3. Nf3 {4} 3... e6 {0} 4. Nc3 {4} 4... Nf6 {0} 5. e3 {4} 5... Nbd7 {0}
>6. Bd3 {5} 6... dxc4 {0} 7. Bxc4 {4} 7... b5 {0} 8. Bd3 {4} 8... a6 {0} 9. e4 {
>5} 9... c5 {0} 10. e5 {119} 10... cxd4 {0} 11. Nxb5 {5} 11... Nxe5 {0} 12. Nxe5
>{5} 12... axb5 {0} 13. Bxb5+ {6} 13... Bd7 {0} 14. Nxd7 {5} 14... Qa5+ {0} 15.
>Bd2 {8} 15... Qxb5 {0} 16. Nxf8 {5} 16... Kxf8 {0} 17. a4 {9} 17... Qc4 {0} 18.
>b3 {133} 18... Qd3 {0} 19. Bb4+ {252} 19... Kg8 {10.69/17 99} 20. Qxd3 {7}
>20... h5 {10.69/16 149} 1-0
>
>No reason to go any further.

You forgot to use the optimize book option under Fritz instead of normal. With
that enabled it would play 17... Qxb2 instead of 17... Qc4. I believe SSDF uses
the optimal book setting, which they should.

Mogens.



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