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Subject: Re: FRITZ MATE SEARCH - HOW !!!!!

Author: Uri Blass

Date: 02:10:34 01/20/02

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On January 20, 2002 at 04:28:30, Steve Wilkins wrote:

>
>  Is there a way to get an engine other than Mate 2.1 or 2.0 to run in the
>mate search in Fritz 7A. I would like to use Crafty 18.13 or even Fritz 7A
>engines but I am having trouble even setting up the positions and asking it to
>do a simple 2 3 or 4 move mate search. I know it's probably very simple but I
>can't seem to get it to work. Any suggestions besides RTM.
>
>                                                      Steve

Crafty and Fritz are designed to play chess and not to search for mate so you
cannot use them to search for mate.

They may miss forced mate because of null move pruning when the opponent is in
zunzwang.

it is known that many of the top programs cannot solve some mate in 2 problems
when there are many pieces on the board and the opponent is in zunzwang because
they prune lines with no threat when there are a lot of pieces on the board.

It causes almost no problems in games but it can cause problems in solving
studies and in  a significant number of mate problems there is an idea of
zunzwang inspite of the fact that there are a lot of pieces in the board.

The best known engine to search for mates is chest and it seems that the number
of people that are interested in mate problems is very small (otherwise
chessbase would do chest compatible with Fritz gui).

Uri



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