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Subject: Re: Tablebases and 50 moves rule

Author: Uri Blass

Date: 17:32:20 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

The 50 move rule is relevant also for computer chess games.
Chess is a game with rules and players should follow the same rules.

TBs also do not tell you the best moves.
It is possible that TBs give you a drawing move because of the 50 move rule when
there is a winning move when the distance to mate is longer but the distance to
conversion is small enough to avoid the draw.

If you play with different rules then you play another game and not chess.
I have no problem if you like more another game but in this case you should not
call the relevant game of computers in the name chess.

Uri



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