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Subject: Re: Queen-side castling - problem for chess programs?

Author: Robert Hyatt

Date: 12:00:31 02/20/01

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On February 19, 2001 at 13:10:14, John Hatcher wrote:

>On February 19, 2001 at 07:44:30, John Wentworth wrote:
>
>>This is just an observance and may be completely wrong, but it seems that when a
>>program castles Queen side his chances of losing go up by a lot. Every time I
>>see a program do this, I say to myself he's going to lose and I bet more than
>>60% of the time he does. This may be a problem with humans vs humans as well, I
>>don't know. Anyone else notice this?
>
>There is a "chess" reason for this, quite apart from any computer reason.  If
>players castle on opposite sides (one King-side, one Queen-side) the chances of
>losing AND of winning go up.  Opposite side castling creates a sharp, tactical
>position with violent pawn storms and piece attacks.  That's true for humans and
>for computers.
>
>John


In comp-comp games, these games are mostly won by the side with better
knowledge about attacking/pawn storming.  In human-comp games, these games
are most often won by the human.  I wouldn't even _think_ about castling
opposite against a good GM if I didn't think my book was deep enough and wide
enough to get the attack well under way before the book fails.



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