Chess piece color.
An error returned when validating Move.
An error returned when parsing a string into BitBoard.
An error returned when parsing a string into ChessBoard.
An error returned when parsing a string into Color.
An error returned when parsing a FEN string into ChessBoard.
An error returned when parsing a string into bitboard::Index.
An error returned when parsing move notation string into Move.
An error returned when parsing a string into Piece.
Chess piece representation.
Piece without color information.