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Subject: Re: Endgame test position

Author: Günther Simon

Date: 10:39:57 01/15/04

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On January 15, 2004 at 13:33:21, Drexel,Michael wrote:

>On January 15, 2004 at 12:24:35, Günther Simon wrote:
>
>>On January 15, 2004 at 12:18:28, Drexel,Michael wrote:
>>
>>>On January 15, 2004 at 09:05:19, Günther Simon wrote:
>>>
>>>>[D]8/p7/1p5p/5k2/8/b1p3P1/3pK1PP/3B4 w - - 0 47
>>>>
>>>>This game was played in Class B of my RWBC tournament circuit.
>>>>(PIV 2.67Ghz, around 128MB hash each program, 4men tablebases
>>>>+ two sets of 5men, 15min/40moves, ponder off)
>>>>
>>>>ExChess had a completely won game, but decided one move before
>>>>to exchange R vs. N+P on f5. It appears to me that this position
>>>>is by all means a draw, but no program will find it.
>>>
>>>This can't be true. Black has 4 connected passers.
>>>I think black wins with 47...Ke5.
>>
>>You should elaborate a bit more here of course, as a good player I think you
>>know, how one bishop can stop up to seven pawns building 'stairs'.
>>Same motive applies here later and dont forget Black King must stop
>>Whites later built passer too! ( the passer is inevitable...)
>>Please have a deeper look at it again after 48.Kd3 etc...
>>
>>Günther
>
>That's an easy win. White King and bishop can't stop the black pawns and prevent
>blacks King from advancing simultaneously.
>The white passer is not a problem. It will be stopped with Bf8.
>Basically you just move up those pawns to the Qeening square.
>b5,a5,a4 etc.
>
>Michael

I really dont know what you are talkin' about here, because the Black
bishop cant go away for a long time, as c3 falls instantly?

Günther

P.S.
Back to the real position, 47.Bc2+, Ke5 48.Kd3 your move...



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