15 extern void book_clear ();
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17 extern void book_open (const char file_name[]);
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18 extern bool book_is_open ();
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19 extern void book_close ();
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21 extern bool is_in_book (const board_t * board);
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22 extern int book_move (const board_t * board, bool random);
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23 extern void book_moves (list_t * list, const board_t * board);
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24 extern void book_disp (const board_t * board);
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26 extern void book_learn_move (const board_t * board, int move, int result);
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27 extern void book_flush ();
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29 #endif // !defined BOOK_H
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