Computer Chess Club Archives




Subject: Re: Maximum Number of Legal Moves

Author: Daniel Mehrmannn

Date: 10:34:16 05/09/05

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On May 09, 2005 at 13:14:06, Dieter Buerssner wrote:

>On May 09, 2005 at 04:09:48, Uri Blass wrote:
>>I am sure that it may be possible to reduce the maximal number of 9 queens and a
>>computer program can calculate the exact maximal number of squares that 9 queens
>>can control by trying all possibilities(replacing a queen by a rook or a bishop
>>certainly will not help and you only need to check the possibility of replacing
>>a queen by a knight but I think that the 9 additional queen give more than 8
>>squares so it is not relevant.
>I wrote such a program, and it gave:
>5 queens 123 moves
>6 queens 144 moves
>7 queens 163 moves
>8 queens 182 moves
>9 queens 201 moves
>As you mention, this alone is not enough to reduce the number of moves.
>The whole thread might be interesting for those who are interested in this
>discussion. There were also 2 positions given with 218 legal moves.

Are you sure Dieter ? I'll remember that you told me about 255 possible moves.
But i'm not sure, its to long ago :(
So my move array has this size.


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