Author: Christophe Theron
Date: 13:22:57 06/01/02
Go up one level in this thread
On June 01, 2002 at 11:16:44, Robert Hyatt wrote:
>On June 01, 2002 at 06:23:34, Gian-Carlo Pascutto wrote:
>
>>On June 01, 2002 at 00:12:53, Robert Hyatt wrote:
>>
>>>Give crafty 1 second per move. It solves it easily. I discovered this
>>>a few years ago when talking about the 4 piece files. This is hard for
>>>humans. It is _very_ easy for computers. Far easier than I would have
>>>thought possible...
>>
>>Hmm, I just tested and mine can't do it at 1 sec per move,
>>so I guess you do need some kind of 'mopping up' code.
>>
>>--
>>GCP
>
>
>Yes. All you really need is code to (a) drive the losing king to the
>edge of the board and (b) get the winning king close to the losing king
>to threaten mate. The search will see how to prevent the rook checks and
>eventually by threatening mate it will win the rook...
I think Tiger has both heuristics and that's why it manages to win, but that's
only by chance.
Actually these heuristics are always activated in the late endgame as I noticed
it was useful so often.
I did not know they were also working in KQKR and that nothing else was needed.
Christophe
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