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Question: I'm looking for some very very simple C (not C++) chess code I can learn from. I'm looking for something very simplistic - only basic data structures (int, char), no graphics (text based) etc - and well commented.

If anyone can help me find something really easy to understand I can up the point value.

The simpler the better as long as it follows all rules of chess (i.e. allows castling, en passant capturing, etc). It only needs to be a two player version (I.E. no AI necessary, though comments as to how to hook one in would be helpful)

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Surfing for fun and I came across Computer Chess / Chess Engines (Winboard) & Chess Programming Info [Chessopolis > Chess Links] -- a large list of chess engines of the freeware, shareware, and open-source variety. Of course I forgot to mention GNU chess which is pretty good (though I don' t find the code very instructive). I have experience under the hood of TSCP so I could talk about that. Reading homepages, Beowulf claims to focus on readability and teaching of chess programming.

Also, I am a language geek so I was thinking that a C compiler could be targetted to your source language. That way you would not have to handle the mulit-dimensional arrays or structs calculations. Just a thought.