void set_output_piece_characters(const char *letters);
char coloured_piece_to_SAN_letter(Piece coloured_piece);
void build_basic_EPD_string(const Board *board,char *fen);
void set_output_piece_characters(const char *letters);
char coloured_piece_to_SAN_letter(Piece coloured_piece);
void build_basic_EPD_string(const Board *board,char *fen);