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Subject: Re: Odd line from crafty in jose-chess

Author: Robert Hyatt

Date: 15:41:43 09/06/04

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On September 05, 2004 at 19:06:20, Kim Roper Jensen wrote:

>Hi all
>
>I just installed jose-chess(linux) and used it with the included crafty 19.11
>for analysing one of my games. But something peculiar is heppening i have this
>position ->
>
>[D]1r4k1/p6p/4b1p1/2B1b1P1/8/4Q2K/P1P2P1P/6r1 w - - 1 37
>
>which is a simple win for black, and crafty agrees but for the wrong reason, the
>line it shows is this ->
>
>90  1. Kh4 Rg4+ 2. Kh3 Rxg5+ 3. Kh4 Rh5# {Crafty 19.11 : -32.76. Depth: 12.
>Nodes: 2} (copied form the jose interface)
>
>The problem is that white still have h3 as an escape square so I wonder why it
>shows the wrong mate ......

How will the king have a safe square?  Rook checking at h5.  King at h4.  How
can the king safely to move to h3 which is _still_ attacked by the rook at h5?

:)



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