Author: Chessfun
Date: 22:04:43 09/22/00
Go up one level in this thread
On September 22, 2000 at 22:00:55, Uri Blass wrote:
>On September 22, 2000 at 19:05:35, Chessfun wrote:
>
>>On September 22, 2000 at 15:22:11, Uri Blass wrote:
>>
>>
>>>I think that Fritz chose a bad book line.
>>
>>
>>I don't think that is true. The line is in both general.ctg and jbook.
>>with the performance for black after 14....b4 as 3315.
>
>I searched for games with the position after 14...b4 in the chessbase site and
>found only one game that white lost but white played 15.Nd5 and not 15.Ncb5
I had looked around a bit too. 15. Nd5 is in both general.ctg and jbook
but with only 1 hit and in analysis mode F6 chooses Ncb5.
>I did some analysis with Junior5.9 by starting from the position after 24.Bc5
>and going back.
>After 24.Bc5 Junior see trouble and after few minutes the score is more than 1.5
>pawns for white(1.73 if I remember correctly).
>
>Alternatives for black in previous moves also seem to be bad.
>
>23...Qb8 is an option but white can win a pawn by 24.Qxb8+
>other options that Junior finds when I go back are 21...gxf6(0.66 pawns for
>white) and there are alternatives at move 16 like Qb7 but the score is more than
>0.5 pawns for white).
I looked at the position for a while prior to my previous post and
pretty much the first few moves are forced.
There are a number of playable alternatives for black.
19.....gxf6 20. Kb1 Ra5 21. Bb6 Qxb6 22. Qxd7+ Kf8 23. Rd6 Kg7
24. Qxc6 Qxc6 25. Rxc6 Rha8 26. Ba6 R8xa6 27.Rxa6 Rxa6
21. Rd2 Qe7 23. Qxe7+ Kxe7 23. Bb6 Rg5
24. Rhd1 Be8 25. Bf3.
As well as naturally 21....gxf6. 0.66 is not game.
>If the line is even then I would like to know what is the mistake of Fritz that
>Rebel avoid?
I said IMO the position was even. I never said anything about any program
avoiding anything. Though IMO the critical move is 19.....Ra1+.
I said for Didzis to reverse colors and play it over from the end of
the opening. If the line turns out to be a bad book line for black then
that also needs to be noted by all programs.
Sarah.
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