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Subject: Re: Is the Sicilian Kan refuted? Looks like only 10... b6 is refuted...

Author: chandler yergin

Date: 11:33:47 02/02/06

Go up one level in this thread


On February 02, 2006 at 12:51:34, Tony Nichols wrote:

>On February 02, 2006 at 12:13:04, Tobias Lagemann wrote:
>
>>Hello Tony
>>
>>>
>>>  I use the Sicilian Kan as a main part of my repertoire and have had very good
>>>results. However, In this game my opponent(and friend) did some special
>>>preperation. After move 11 it looks like white gets a huge attack. Is this the
>>>end of the Kan variation?
>>>
>>>[Event "LMS 1-08-06"]
>>>[Site "?"]
>>>[Date "2006.01.??"]
>>>[Round "3"]
>>>[White "Homa, Seth"]
>>>[Black "Nichols, Tony"]
>>>[Result "1-0"]
>>>[ECO "B43"]
>>>[WhiteElo "2154"]
>>>[BlackElo "1954"]
>>>[PlyCount "79"]
>>>
>>>1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. Bd3 Nf6 7. O-O Bc5 8.
>>>Nb3 Be7 9. f4 d6 10. a4 b6 11. e5
>>>
>>>[D]rnb1k2r/2q1bppp/pp1ppn2/4P3/P4P2/1NNB4/1PP3PP/R1BQ1RK1 b kq - 0 11
>>>
>>> This is the critical position. It would appear as though black has done nothing
>>>wrong and yet white is clearly better. I have analyzed this position with
>>>various engines and can't seem to find a good defense. Maybe someone want's to
>>>take a look?!
New game,
[D]rnb1k2r/2q1bppp/pp1ppn2/4P3/P4P2/1NNB4/1PP3PP/R1BQ1RK1 b kq - 0 1

Analysis by Fritz 5.32:

1...Nfd7 2.exd6 Bxd6 3.a5 Bb7 4.axb6 Qxb6+ 5.Kh1 Bc7 6.Qe2
=  (0.19)    Depth: 12/40   00:01:52  169194kN
(,  02.02.2006)

>>>
>>>Regards
>>>Tony
>>
>>I've used the statistic-option on chesslab.com...
>>
>>Here the result for 10... b6 for the years 1991 till now.
>>
>>White won 42%
>>Black won 0%
>>Draw 58%
>>
>>Horrible :-(
>>
>>And here the statistic for 10... Nc6:
>>
>>White won 37%
>>Black won 31%
>>Draw 32%
>>
>>Seems to me 10... b6 is refuted.
>>
>>Best regards
>>Tobias
>
>Thanks for the info Tobias,
>
> I've been analyzing these positions for a few hours and I think I know less now
>than when I started! At short depths the engines think black is ok. When prodded
>all of a sudden white is clearly better and then suddenly black is ok again but
>wait... You get my point. From a practical players perspective it would be very
>difficult to play as black, where as white has many ways to play and risks
>nothing. Is 10...b6 refuted? I wouldn't even venture a guess!
>Regards
>Tony



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