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Subject: Re: Very easy mate to solve.

Author: leonid

Date: 19:45:25 12/31/01

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>The defending king has 5.25 flight squares on average (including the king's
>square). That is a lot.  Delivering mate is not easy, then.
>(This statistic is done _before_ the attackers move at ply 4)

You do your statistic before specialized plys?

My idea is just to look for needed indication in ply 3. Ply 3, if counting goes
from biggest ply down and end with number one. I do expect to generate all moves
in ply 3 (black, defender side) and after see existence of checking moves
(against white king) and number of legal moves for black king. All needed
indication for searching certain moves more deeply exist already for free in ply
3. Procedures must be wrote only to do the work when indication for success is
apparent. I expect that working procedures could be easily written in  one week.
Problem is to be ready for writing. For now my mind is not there.

>Yes, if you do not yet do something like that, there is still a lot of
>potential.  But it is not easy to do the necessary calculations quick enough.

This part is somewhat surprised me and this is why I made my question before.

It could be that you see for needed statistics before ply three and if it is
favorable, you generate later only limited number of moves. Moves that just
needed to obtain success. Then your logic save time needed for generation of all
legal black moves in ply 3.

Cheers and Happy New Year!!!! We are already there.

Feel big joy for all You Europeans that came finally to some kind of Union. New
Union money, that start with coming 2002, is visible sign that this old dream is
real.

Leonid.



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