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Re: additions to the shannon algorithm?

Posted: Fri Jan 16, 2009 9:54 pm
by Greg Strong
Another idea that has been kicked around is adding an eval bonus for the side to move, although, personally, I don't think it's a good idea. I think it is reasonable, however, for the king safety algorithm to consider the side to move in determining how serious a threat is.

Re: additions to the shannon algorithm?

Posted: Sun Jan 18, 2009 11:56 am
by Gian-Carlo Pascutto
Another very important thing is knowing which endgames are drawn.

Re: additions to the shannon algorithm?

Posted: Wed Jan 21, 2009 10:12 pm
by diep
Note that 1,3,3,5,9 is not the shannon way of counting,
but rather the Max Euwe manner of counting.

http://en.wikipedia.org/wiki/Max_Euwe

Max Euwe was world champion 1935-1937 and a very influental person in the chess scene.

Thanks,
Vincent

Re: additions to the shannon algorithm?

Posted: Wed Jan 21, 2009 11:50 pm
by Gerd Isenberg
diep wrote:Note that 1,3,3,5,9 is not the shannon way of counting,
but rather the Max Euwe manner of counting.

http://en.wikipedia.org/wiki/Max_Euwe

Max Euwe was world champion 1935-1937 and a very influental person in the chess scene.

Thanks,
Vincent
http://en.wikipedia.org/wiki/Chess_piece_point_value
Another system is used by Max Euwe and Hans Kramer in Volume 1 of their The Middlegame, with values:

* pawn = 1
* knight = 3½
* bishop = 3½
* rook = 5½
* queen = 10.
http://www.pi.infn.it/~carosi/chess/shannon.txt
(1) The relative values of queen, rook, bishop, knight and pawn are about
9, 5, 3, 3, 1, respectively.
Gerd