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Subject: Re: Does your program understand castling/en passant rights on 3x repeti

Author: José de Jesús García Ruvalcaba

Date: 11:35:26 02/28/00

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On February 27, 2000 at 09:41:16, blass uri wrote:

>On February 27, 2000 at 09:34:36, Robert Hyatt wrote:
>>On February 27, 2000 at 03:04:05, Tom Kerrigan wrote:
>>>I don't think exact adherence to these rules is necessary.
>>It is if you plan on playing in human events...
>>If you claim a repetition and refuse to continue to play, you lose.  If you
>>don't recognize a repetition and continue to play, you can draw a won ending.
>The point is that the probability to have 3 times repetition that is not a draw
>because of castling or en passent is very low.
>I do not know about cases when it practically happened in games.

	It happened in a game between Karpov and Miles in the eigthies. Karpov was
penalized with five minutes on his clock for an incorrect draw claim (those were
the rules at that time). He could have lost on time, but fortunately for him he
had more than five minutes left (the game ended in a draw anyway). I read this
story many years ago in NIC. I think it is posible to find this game by
searching for all the draws between Karpov and Miles from 1980 to 1989.

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