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Subject: Re: Draw due to lack of blockade detection...

Author: Terry Ripple

Date: 09:15:19 10/04/02

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On October 04, 2002 at 12:05:00, Sune Fischer wrote:

>On October 04, 2002 at 11:57:52, Terry Ripple wrote:
>
>>On October 04, 2002 at 11:29:24, Sune Fischer wrote:
>>
>>>On October 04, 2002 at 11:05:24, Terry Ripple wrote:
>>>
>>>>On October 04, 2002 at 10:34:43, Omid David wrote:
>>>>
>>>>>Just today we had a discussion regarding the importance of blockade draw
>>>>>detections http://www.talkchess.com/forums/1/message.html?255950
>>>>>
>>>>>Had Fritz implemented such a scheme, it wouldn't have stepped into the drawing
>>>>>variation.
>>>>>
>>>>>My engine instantly announced draw based on its blocked-draw detection
>>>>>heuristic. While Fritz never realized the draw...
>>>>>
>>>>>Omid.
>>>>----------------
>>>>
>>>>But you simply can't always make compter avoid blocked-draw positions or the
>>>>program might lose by simply trying to push too hard for a win when it should
>>>>accept the drawn position!
>>>>
>>>>In top level play if black tries for a draw it is very hard for white!
>>>
>>>True, and if Fritz really intended to play for the draw then it would have been
>>>okay.
>>>The problem is fritz didn't "understand" that it was going into a solid draw,
>>>its evaluation is simply broken. Maybe the result would have been the same
>>>regardless for this game, but obviously you should not expect to see a program
>>>as strong as fritz evaluate so poorly. Bad evaluation will cost you points in
>>>the long run, for sure.
>>>
>>>-S.
>>----------------
>>I agree to that, but this position was talked about on Chess.FM by some of the
>>grandmasters who thought that the position was still hopeless and the same
>>outcome in the game was inevidible!
>
>Kramnik was thinking, if I manage to trade rooks, and get my king there and move
>the bishop there, or do this and that and give him a double pawn there, then
>it's draw!
>
>Even with 20 ply searches Fritz is not going to see this if it can't staticly
>detect the draw far out around the leafs.
>
>-S.

This is also true!
>
>>Terry
>>>
>>>>



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