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Subject: Re: First mate in 2, then mate in 3, am I missunderstangin A-B?

Author: Albert Bertilsson

Date: 09:03:53 03/03/03

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On March 03, 2003 at 11:53:29, Ulrich Tuerke wrote:

>On March 03, 2003 at 11:26:36, Albert Bertilsson wrote:
>
>>Hmm... that might be it, since the opponent move sacrificed the own Queen and
>>only delayed the mate with one full move.
>>
>>But I still have a tough time to understand this...
>
>In fact it was me, who was confusing things. See my reply to Uri.
>One reason for the behavior of your engine may be that you stop search whenever
>finding a mate - instead of searching fr a shorter one ?
>
>Uli
>
>>I see the A-B as searching for the best moves you can find, the next ply it
>>searches for the best move the opponent can do (and loosing a Queen is better
>>than an early mate) so why didn't my program also realize that the opponent
>>would rather sacrifice the queen than face defeat?
>>
>>/Regards Albert

That must be it, when the mate is found it can't find the shorter one, because
it has found a way to finish the game (there is no better move).

Basically it comes down to luck then.

/Regards Albert



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