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Subject: Re: Rebel 12 misses a mate in one?

Author: Uri Blass

Date: 00:08:24 07/26/03

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On July 25, 2003 at 18:51:01, George Tsavdaris wrote:

>On July 25, 2003 at 18:22:26, Uri Blass wrote:
>
>>On July 25, 2003 at 18:14:25, Ed Schröder wrote:
>>
>>>On July 25, 2003 at 17:50:21, Ernst Walet wrote:
>>>
>>>>This afternoon my account on the chessbase server played a game against Rebel
>>>>12.  To my astonishment Rebel missed a mate in one, and got mated right away.
>>>>Any thoughts on this, Ed?
>>>
>>>Yes, I have.
>>>
>>>Rebel claims a draw (50 moves rule) after 151.Bd3 which is ignored by the
>>>interface.
>>>
>>>Since blacks last pawn move is at move 101 is black allowed to make its 151th
>>>move? It's no capture, neither a pawn move.
>>>
>>>If so I have a bug in Rebel of over 20 years :)
>>
>>Yes
>>You have a bug.
>>
>>you cannot claim a draw after Bd3 because there were only 99 plies with no
>>capture and no pawn move.
>>
>>You cannot claim a draw after the mate because a mate is the end of the game and
>>if you need to decide between mate and 50 move rules than mate decide the result
>>of the game.
>>
>>Uri
>Can black claim a draw (stupid of course) before he make the move?

Yes but it is better for black to win the game and not to claim a draw.

Uri



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