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Subject: Re: Compact encoding of chess positions II

Author: Chris Welty

Date: 22:09:44 03/05/05

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On March 05, 2005 at 14:46:06, Reinhard Scharnagl wrote:

>On March 05, 2005 at 12:00:13, Chris Welty wrote:
>
>>r3k3/8/8/8/8/8/8/4K3 w q - 0 1
>>
>>and
>>
>>r2k4/8/8/8/8/8/8/4K3 w - - 0 1
>>
>>get encoded to the same number in your scheme, so while it is compact it is also
>>a lossy compression scheme.
>
>No. First parts A are different e.g. because of different castling rights.
>Second the rook of first example does not occur in the filling matrix,
>whereas it does in the second example.

What is the "Part A" component for each of these? If I understand your scheme
correctly the "Part A" component of both is E1/D8/0/0.

>Average saving of color Bits                     =    2;
>Average saving of piece code Bits:               =    6;

What are these?



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