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Subject: Re: Crafty and draw by repetition ?!

Author: Andrew Dados

Date: 07:52:23 04/22/00

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On April 22, 2000 at 10:15:29, Robert Hyatt wrote:

>On April 22, 2000 at 09:18:45, Dan Andersson wrote:
>
>>Nope you claim a draw, not by making a move but by claiming it. Making a move
>>and claiming it is a chess server sillyness. That means any chess program must
>>have a separate implementations of 3-fold for 'correct' chess.
>
>
>playing on a chess server and playing in a game is slightly different.  On the
>chess server there isn't an easy way to make the move, claim the draw, and
>_then_ press the clock.
>
>In a tournament game, not played on a chess server, crafty does it correctly
>as the output looks like this:
>
>My move 14. Nf3
>
>I claim a draw by 3-fold repetition
>
>your move.
>
>Since the operator has to make the move and press the clock, the operator
>sees the move, makes it and announces the draw claim while it is still crafty's
>move, since the clock has _not_ been pressed.  This is perfectly according to
>the rules of chess...
>
>This can't be done on a chess server, although there has been discussion about
>eventually being able to send a move like this:
>
>Nf3 [draw]
>
>to solve the small semantic problem of when the draw offer is made and when the
>clock is pressed.

FICS accept syntax 'draw Nf3' for that purpose. It means exactly: 'I move Nf3
and claim draw before pressing clock'.
ICC has yet to catch up.

-Andrew-



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