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Subject: Re: Difficult test position for your engines!

Author: Uri Blass

Date: 06:39:44 09/29/03

Go up one level in this thread


On September 29, 2003 at 09:36:29, Uri Blass wrote:

>On September 29, 2003 at 08:47:20, Drexel,Michael wrote:
>
>>On September 29, 2003 at 08:36:33, Uri Blass wrote:
>>
>>>On September 29, 2003 at 07:08:48, Drexel,Michael wrote:
>>>
>>>>On September 29, 2003 at 06:36:42, José de Jesús García Ruvalcaba wrote:
>>>>
>>>>>On September 29, 2003 at 06:31:13, Drexel,Michael wrote:
>>>>>
>>>>>>On September 29, 2003 at 06:21:18, José de Jesús García Ruvalcaba wrote:
>>>>>>
>>>>>>>[D] 8/8/p4Bp1/1pPb2P1/1P2kp2/P7/5K2/8 w
>>>>>>>From Bellon-Minic, only 41. c6!! draws, all other moves lose.
>>>>>>>José.
>>>>>>
>>>>>>
>>>>>>Are you sure
>>>>>>Show me how to win with black after 41.Bd8 for example.
>>>>>>
>>>>>>Michael
>>>>>
>>>>>After Bd8, black plays Bc6!, then f3, then the black king goes to capture the
>>>>>a3-pawn, then return to e4 and puts white in Zugzwang.
>>>>>José.
>>>>
>>>>Hmm, maybe you can do some triangulation with the King before playing a5.
>>>>I am not sure though.
>>>>I also dont see why c6 should be a draw then.
>>>>How did the game end?
>>>>
>>>>Michael
>>>
>>>I did not analyze it but after c6 the white bishop can protect b4 from e7
>>
>>I also can not analyze it now.
>>If the c6 pawn and the a3 pawn are gone and white protects b4 from e7, how can
>>white prevent black from playing Ka4 followed by a5?
>>
>>Michael
>
>You are right and it seems not possible and maybe the idea of white is  that
>after c6 the move Bb6 prevents f2 so the white bishop should go to a5 to prevent
>a5 or to b6 to prevent f2 dependent on the black king.
>
>Uri

The only problem is that I do not see at this moment how can black get f2 when
the white king is always at f2 and I do not see the zugzwang even with the pawn
c5.

Uri



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