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Subject: Re: KR against KQ is draw without tablebases

Author: Uri Blass

Date: 09:44:14 01/27/03

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On January 27, 2003 at 12:35:50, Georg Langrath wrote:

>I tried to let Chessmaster 9000 play against itself in endgame KRKQ. The side
>KR with tablebases and the side  KQ without. KQ-side wasn’t nearer checkmate in
>move 50 than in move 1, even with 3 minutes per move.  It is rather amusing to
>look at. I think that it is impossible for a computer to solve without special
>knowledge or tablebases as in the case KBNK.
>Georg

The special knowledge that is needed is that it is good to reduce the disatnce
between the kings.

Uri



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