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Subject: Re: Crafty refuses draw request

Author: Uri Blass

Date: 04:25:12 09/06/00

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On September 06, 2000 at 06:14:29, Amir Ban wrote:

>On September 05, 2000 at 10:32:27, Robert Hyatt wrote:
>
>>On September 05, 2000 at 01:18:55, Mark Longridge wrote:
>>
>>>I was playing crafty the other day and white had a pawn on h7, and a knight on
>>>g5, black's king is in the corner, and black has only it's king.
>>>
>>>There's absolutely no way black can win with just a king, but it STILL REFUSES
>>>A DRAW request!
>>>
>>>It just seemed very odd ;-)
>>
>>
>>It mainly depends on how you have things set up.  And even if it is set up
>>correctly, there are 'rules' that have to be satisfied before it will accept
>>a draw.  IE it has to believe it is a draw.  It also has to get a draw score
>>back from the search for 5 consecutive moves (3 for GM players) before it will
>>accept or offer a draw.
>>
>>Just giving the position doesn't provide enough information...
>>
>>The log.nnn file is also needed.
>
>The position provides all the relevant information.
>
>It's your problem, not the opponent's to make sure your program behaves
>reasonably.
>
>Asking the opponent to provide internal crafty parameters and logs is not
>reasonable.
>
>Amir

I agree.

Without looking at the logfile the rules of getting a draw score for 5 or 3
consecutive moves can be illogical rules in some cases.

It means (if I understand correctly) that Crafty is not going to accept a draw
in the relevant position(assuming it had a losing position 3 moves ago).

I do not say that Crafty should accept a draw after one draw score but it should
accept a draw when it has only a king.

Uri



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