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Subject: Re: Null Move and The Washington Post (more)

Author: Andrew Platt

Date: 11:53:14 09/22/04

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On September 22, 2004 at 14:42:59, Robert Hyatt wrote:

>On September 22, 2004 at 07:53:37, Andrew Platt wrote:
>
>>Actually, more accurately a problem with null move and a position that appeared
>>in this week's Washington Post Chess column:
>>
>>[D] 3K4/8/2ppp3/2pkp3/2ppp3/8/4P3/3Q4 w - - 0 1
>>
>>The main thing to do is to wait for black to commit suicide, something that null
>>moves are very bad at doing! The solution is to make an active waiting move that
>>will position the Queen directly later:
>>
>>1. Qa1 d3 2. Qc3 e3 3. exd3 cxd3 4.Qxd3#
>>
>>However, Schola does not want to get this mate. I can run it as long as I like
>>and it still goes for the longer mate:
>
>You are not doing null-move for black I hope?  IE with only pawns, null-move is
>bad...

This is probably the problem; Stan asked this too. I need to check tonight if
this is what's causing the problem. However, I do have verified null move and so
if it cuts off with that it should re-verify with a shallow search which should
still work OK for no pieces. This is the part I need to check.

Andy.



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