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Subject: Re: Funny Cook, Mate in 11

Author: Peter Berger

Date: 03:13:50 10/14/01

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On October 13, 2001 at 23:48:51, Miguel A. Ballicora wrote:

>Der Bringer with "two best options" in analyzing mode finds
>after 10 plies that Qh6+ is Mate in 11. Funny is that the uninteresting
>move Qd2 is also mate in 11!! Unbelievable what computers can find.
>Another cook and another position from WCSAC eliminated.
>
>Regards,
>Miguel

This is a bug in Bringer 1.8. Bringer used to stop its analysis suddenly
whenever it found a forced mate . It looks as if it propagated the mate
evaluation and the node count from the best move to the second move in the list
in 2-best mode, too - just a second before it finds the mate for Qh6 you can
still see the real value for Qd2 which was in the same region as the Fritz
analysis Uri posted. So you shouldn't trust the eval for the second move in case
the best move has a mate score - everything with a grain of salt as I am not the
programmer.

I am confident this won't be in Bringer 1.9 as I couldn't reproduce the problem
with the current beta :).

pete



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