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Subject: Re: Strange position - who can reach it with minimum moves?

Author: Christoph Fieberg

Date: 11:33:12 07/11/01

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On July 11, 2001 at 12:22:15, Heiner Marxen wrote:

>On July 11, 2001 at 11:45:17, Christoph Fieberg wrote:
>
>>I composed the following position:
>>[D]r2qk2r/8/8/qqqqqqqq/QQQQQQQQ/8/8/R2QK2R b KQkq - 0 80
>>
>>Who can construct a game to reach it?
>>
>>In my first attempt I needed 161 moves (last move was 81.Ke1).

161 moves was meant as half-moves! (as you could see from the notion 81.Ke1)
Sorry, that I did not express excatly.

>
>If the white K has moved, its castling rights KQ should be removed!
>

In my game both kings had moved! Therefore no castling possible any more.


>>Who needs less moves?
>
>IIRC, Popeye can construct proof games.  But more than 300 plies?

As explained only 161 plies are necessary! Can Popeye cope with it?

Regards,
Christoph


>I cannot imagine any program to proove the shortest proof game for such
>a position... but then, what do I know?
>
>>Best regards,
>>Christoph
>
>Regards,
>Heiner



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