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fen to fen functions
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Dann Corbit



Joined: 08 Mar 2006
Posts: 5125
Location: Redmond, WA USA
PostPost subject: Re: fen to fen functions    Posted: Mon May 21, 2007 5:48 pm Reply to topic Reply with quote
Uri Blass wrote:
I wonder if there is a free program with source that finds symmetric positions of a specific position.

The program simply should get a fen and parameter (same side to move in case that there is no problem because of castling rights or different side to move) and return a symmetric fen

Example:

The program should get the following fen

[D]4k3/8/8/pppppppp/8/8/PPPPPPPP/4K3 w - - 0 1
   ::    :: BK ::    ::
::    ::    ::    ::    
   ::    ::    ::    ::
BP BP BP BP BP BP BP BP
   ::    ::    ::    ::
::    ::    ::    ::    
WP WP WP WP WP WP WP WP
::    ::    WK    ::    


it can return the following fens(when the first is for the same side to move and the second is for different side to move)

[D]3k4/8/8/pppppppp/8/8/PPPPPPPP/3K4 w - - 0 1
   ::    BK    ::    ::
::    ::    ::    ::    
   ::    ::    ::    ::
BP BP BP BP BP BP BP BP
   ::    ::    ::    ::
::    ::    ::    ::    
WP WP WP WP WP WP WP WP
::    :: WK ::    ::    

[D]4k3/pppppppp/8/8/PPPPPPPP/8/8/4K3 b - - 0 1
   ::    :: BK ::    ::
BP BP BP BP BP BP BP BP
   ::    ::    ::    ::
::    ::    ::    ::    
WP WP WP WP WP WP WP WP
::    ::    ::    ::    
   ::    ::    ::    ::
::    ::    WK    ::    


There is a visual basic utility written by Les Fernandez that does exactly that.

I can send you a copy if you want, including the source code.
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Display posts from previous:   
Subject Author Date/Time
fen to fen functions Uri Blass Mon May 21, 2007 10:17 am
      Re: fen to fen functions Alessandro Scotti Mon May 21, 2007 3:20 pm
      Re: fen to fen functions Reinhard Scharnagl Mon May 21, 2007 5:10 pm
            Re: fen to fen functions Uri Blass Tue May 22, 2007 1:21 pm
                  Re: fen to fen functions Alessandro Scotti Tue May 22, 2007 3:46 pm
                        Re: fen to fen functions Uri Blass Tue May 22, 2007 4:24 pm
                              Re: fen to fen functions Alessandro Scotti Tue May 22, 2007 4:46 pm
                                    Re: fen to fen functions Uri Blass Thu May 24, 2007 12:52 pm
                                          Re: fen to fen functions Uri Blass Thu May 24, 2007 4:51 pm
                                                Re: fen to fen functions Uri Blass Thu May 24, 2007 8:13 pm
                                    Re: fen to fen functions Steffan Westcott Sat Jun 02, 2007 5:05 pm
                              Re: fen to fen functions Dann Corbit Tue May 22, 2007 6:33 pm
      Re: fen to fen functions Dann Corbit Mon May 21, 2007 5:48 pm
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