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Subject: Re: Shredder's Opening book

Author: Sandro Necchi

Date: 23:05:10 02/13/01

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On February 13, 2001 at 15:08:56, Aloisio Ponti Lopes wrote:

>Last night Shredder 3.0 played this line as white against a friend at my local
>FICS server:
>
>1. d4 c6 2. c4 Nf6 3. Nc3 d5 4. e3 dxc4 5. Bxc4 b5 6. Bxb5
>
>and got a lost position after 6... cxb5 7. Nf3 a6 8. O-O Bb7 9. Bd2 e6 10. a4 b4
>11. Na2 a5 12. Nc1 Bd6 13. Nd3 Ba6 14. Qe2 Ne4 15. h3 O-O 16. Rac1 Nd7 17. Nfe1
>Ndf6 18. Nf3 Qb6 19. Rc2 Rac8 20. Rcc1 Qb8 21. Rfd1
>
>The time limit used was 5 min.+ 3 sec./move.
>
>Isn't 6.Bd3 the "natural" move? I can't see why Shredder played 6. Bxb5. Even
>after 7.Qf3 Bd7! 8.Qxa8 Bc6 9.Qxa7 Bxg2 10.Nxb5 Nc6 black has a better position.
>
>I tryed the book of Shredder 4 and nothing has changed. Switched to Shredder5
>and it still considers 6.Bxb5 while in analysis mode.
>
>Tried my "old" Fritz 5.16. It plays 6.Bd3 in less than 2 minutes.
>
>What is the problem here? How can I fix that?

You can fix it adding the new move with playing the move/s you want to play on
the board, than option->opening book->import current game and select all lines
and absolute move than give the max ply (in your case up to move 6 for white is
11 ply) and select d for white and f for black in the value screen. If you want
to remove 6. Bb5 (if in book) than go with the mouse on the opening move
displayed on the right side of the screen (the window screen where the moves are
displayed and press the right button of your mouse on that move. A windows will
apper and select f value and if you like ? and press OK. Now Bd3 will get d
value (playble) and Bb5 f value (not to be played).

That's done.

Ciao

Sandro
>
>------------------------------------------------------------------------------
>
>Comparing the 2 programs, I think Fritz opening book is much easier to change
>(the tree can be edited very easily). That's one of the features of Shredder I
>really don't like.
>
>A. Ponti
>
>A. Ponti



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