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Subject: Re: Gambit Tiger 2 Analysis Mode fail in endgame

Author: James T. Walker

Date: 09:17:44 04/02/01

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On April 02, 2001 at 09:32:59, Laurence Chen wrote:

>On April 01, 2001 at 23:12:07, James T. Walker wrote:
>
>>On April 01, 2001 at 22:13:01, Laurence Chen wrote:
>>
>>>Is it me or other users are also experiencing the same "bug"?  I've just updated
>>>Gambit Tiger to the new version, and the first thing I've tested was the
>>>analysis mode, and to my disappointment it fails to analyze if the position is
>>>an endgame if there's 5 pieces or less.  I have all the 5 men tablebases, and
>>>the analysis mode fails to suggest any move at all.  I think the Beta testers
>>>failed to check for bugs and they were supposed to check for all bugs, no for
>>>chess engine strenght alone, this annoys me.  Well I hope that Christopher can
>>>fix this minor bug.
>>
>>Hello Laurence,
>>Why do you want to "analyze" a 5 man endgame when the tablebases will give you
>>the best move?  I guess you are right, it's a bug but I don't see it as major
>>since just telling it to move will give the "best move".  Also if you turn off
>>the "Use endgame databases" option under the "Extra/options" menus it will
>>analyze the endgame for you.
>>Jim
>Hi Jim,
>
>It's not that I want to analyze a 5 men endgame, it surprised me that the
>analysis mode failed when I loaded any 3, 4, or 5 men endgame.  Of course, I
>could use any of my Chessbase engines in order to analyze 5 men endgame.  Put
>this way, what if I set up a position with 7 men endgame, and it gets to a point
>in which a trade of pieces is possible to reduce to a 5 men endgame, because
>Chess Patner only displays the principal PV, unlike Chessbase GUI which gives
>all other alternatives, I like to try different moves in the analyzis mode and
>see what PV score GT or CT would give.   And if the endgame gets reduced to a 5
>men endgame, I won't be able to see the evaluation because of this bug.  That
>means that I would have to use a Chessbase engine to analyze the position, which
>means closing CT or GT and open another program.  Then what would be point of
>using GT or CT to analyze endgame positions if I need to open another chess
>program to do a follow up. Grrr....
>Regards,
>Laurence

Hello Laurence,
I still do not understand your problem.  As I said above if you want to analyze
the position you can turn off the Tablebases then Tiger will analyze per normal.
 If you are in the 5 man tablebases then what analysis is needed?  The tablebase
gives you the answer to any move you input.  So you can analyze with tablebases
on untill you get to 5 men.  At that point you can get the "definitive" answer
to any move from the tablebases or you can turn off the tablebases and let Tiger
analyze without tablebase info.  What could you miss with this procedure?  With
tablebases on you get the "perfect" solution and with them off you get Tiger's
opinion (not necessarily perfect).
Jim



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