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Subject: Re: testing of evaluation function

Author: Tom Likens

Date: 17:23:49 04/19/03

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On April 18, 2003 at 09:26:33, Robert Hyatt wrote:

[--snip--]

>>I also reverse the FEN of each position to check that the white
>>and black score is the same, which has identified a few bugs.
>
>I added a flip and flop command.  I reverse it interchanging
>a1 and a8, etc.  I flip the board changing a1 and h1, and I finally
>do both, interchanging a1 with h8.  And then I make sure that all
>scores are identical.

Clever idea. How do you handle castling rights when you translate
the position along the mid-board y-axis (i.e when you interchange
a1 with h1 etc.)?

--tom



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