feat: add support for Chess960 and Double Chess960 #6
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movegen works, and you can toggle between displaying castling rights (and castle moves) in both standard and Chess960 notation with the alternate formatter (`#`)
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Right now there seems to be a bug. When I use this branch in Latest commit to Using this version of Chessie: |
Bug found. The change of castling moves to the We're good to merge this, now. |
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Adds support for Chess960 by refactoring how Castling moves are encoded/computed.
Several utility functions are provided for converting to/from standard and 960 notation for FEN strings, castling rights, and castling moves.
The
fischer.epdtest suite is also included in the test cases, and passes up to depth 6. I should note that running this suite at depth 6 takes a long time, so I have cut it down to depth 5 by default.