Anything related to my various Chess Engine attempts.

There is the Chess Engine in Perl that drives my NaNoGenMo 2017 entry, code here: https://github.com/greg-kennedy/ChessBook/

This needs some cleanup and it doesn't do all the moves yet (perft comes up short) - no castle or en passant yet. So that's something to work on.

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There is Chess505, the attempt to put a chess engine in the PIC16F505. Still stuck in move generation.

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There is VCSChess, the attempt to put a good chess engine on the Atari 2600. Very early stages.

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There is PGNClean, the attempt to fix broken PGN files. I was working on a PGN 1.1 standard to resolve some holes in the original - doing away with the binary representation, using ISO 8601 dates and IOCC country codes, unlimited line length, etc. Got a draft spec but nothing solid.

This was being done for pgn2ebook (which ALSO could use some work), because I wanted to call pgnclean on uploads first to make them standard, and then pgn2ebook import logic could be simplified dramatically.

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