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Subject: Re: Is there a draw by reptition ?

Author: Marc D

Date: 12:59:11 04/07/05

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On April 07, 2005 at 12:23:25, John Merlino wrote:

>On April 07, 2005 at 10:42:47, Marc D wrote:
>
>>On April 07, 2005 at 10:37:19, Günther Simon wrote:
>>
>>>On April 07, 2005 at 08:40:46, Marc D wrote:
>>>
>>>>On April 07, 2005 at 08:23:50, Vincent Lejeune wrote:
>>>>
>>>>>I think yes
>>>>>
>>>>>[d]4RQ2/5p2/2q2kp1/3p4/3P2PP/8/1K6/8 b - - 0 1
>>>>>
>>>>>Is there any program find it (in less than 30 min) ?
>>>>
>>>>
>>>>Analysis by X3D Fritz:
>>>>
>>>>1. +- (2.71): 1...Dc6-b5+ 2.Kb2-c2 Db5-c4+ 3.Kc2-d2 Dc4xd4+ 4.Kd2-e1 Dd4-g1+
>>>>2. +- (#10): 1...Dc6-b6+ 2.Kb2-c2 Db6-c6+ 3.Kc2-d2 Dc6xe8 4.Df8xe8
>>>>3. +- (#9): 1...Dc6-b7+ 2.Kb2-c2 Db7-c6+ 3.Kc2-d2 Dc6xe8 4.Df8xe8
>>>>4. +- (#7): 1...Dc6xe8 2.Df8xe8 Kf6-g7 3.g4-g5 f7-f5 4.De8-e7+ Kg7-g8 5.h4-h5
>>>>5. +- (#4): 1...Dc6-c1+ 2.Kb2xc1
>>>>
>>>>After forcing Qc3+ this:
>>>>
>>>>Analysis by X3D Fritz:
>>>>
>>>>2.Kb2xc3 g6-g5 3.Df8-h6#
>>>>  +-  (#2)   Tiefe: 3/16   00:00:00
>>>
>>>
>>>The question was to find a perpetual draw, not the
>>>quickest help mate (:
>>>
>>>Guenther
>>
>>
>>I don't know how this could be done since all engines (i started) show a favour
>>for white.
>>Neither did any perpetual check (which is not possible) work out.
>>I thought due to this there is no perputual draw chance and i should instead
>>post that it could be actually mate.
>>
>>Sorry my fault :-(
>>
>>Marc
>
>I'm pretty sure that there is a perpetual check available for Black. Where can
>the White King hide from a check?
>
>jm

Kd3



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