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Subject: Re: Tablebases and 50 moves rule

Author: Dave Gomboc

Date: 21:54:52 09/14/01

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On September 14, 2001 at 20:00:34, Helmut Conrady wrote:

>On September 14, 2001 at 19:50:16, Dan Andersson wrote:
>
>>The rules state that you have to mate in 50 moves. Then it doesn't matter if you
>>might mate in 51. An analogous example is if you are 45 moves into the 50 move
>>rule and you have a forced mate in 6 moves. Then its also a draw. The only point
>>is that if you follow the rules of chess you cannot claim a win, unless your
>>opponemt allows it.
>
>The 50 move rule is useful ONLY for human play, because no arbiter can say,
>whether a special position on the board is a exception for a win in more than 50
>moves. But there are arbiters that can say: The TBS! Why a draw, when a position
>is won after a couple of best moves??
>
>Helmut

Before even considering the use of a TB as an arbiter, I would want a formal
proof of correctness for the program that generated it.

Dave



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