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Subject: Re: Eureka! Voila! Ooh La La! (Thanks Uri!)

Author: Reinhard Scharnagl

Date: 04:01:41 12/04/05

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On December 04, 2005 at 06:54:09, Uri Blass wrote:

>On December 04, 2005 at 06:43:01, Reinhard Scharnagl wrote:
>
>>On December 04, 2005 at 06:35:35, Uri Blass wrote:
>>
>>>I do not know about double checks when a piece that moved does not give check.
>>
>>Hi Uri,
>>
>>[D]8/8/3k4/2pP4/8/B2R4/4K3/8 w - c6 0 1
>>
>>I just composed that. Watch the Pawn e.p. capture move.
>>
>>Reinhard.
>
>Hi Reinhard,
>Thanks I see it now.
[D]>
>It seems that enpassent is the only case that it can happen and it can only
>happen from rook a1-a8 direction and diagnol direction.
>I thought about enpassent capture earlier but not about this example but about
>checks from h5-a5 direction.
>
>Fortunately this example does not lead to a bug in movei.
>I had in the past a bug when I assumed that checks cannot be done from 2 rook
>directions but calculating the direction of checks after a move is not done
>based on the previous move.

Hi Uri,

e.p. could be strange. See that e.p. is impossible, PINNED through two pieces at

[D]8/1k6/8/1KpP1r2/8/8/8/8 w - c6 0 1

Reinhard.



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