lib_index(chess_db_opening, 2, any, chess_db, chess_db_opening).
lib_index(chess_db_list, 1, any, chess_db, chess_db_list).
lib_index(chess_db_game_info, 3, any, chess_db, chess_db_game_info).
lib_index(chess_db_current, 2, any, chess_db, chess_db_current).
lib_index(chess_db_connect, 2, any, chess_db, chess_db_connect).
lib_index(chess_db_disconnect, 1, any, chess_db, chess_db_disconnect).
lib_index(chess_db, 1, any, chess_db, chess_db).
lib_index(chess_db, 3, any, chess_db, chess_db).
lib_index(chess_db_max_id, 2, any, chess_db, chess_db_max_id).
lib_index(chess_db_opening_pgn, 2, any, chess_db, chess_db_opening_pgn).
lib_index(chess_db_match, 2, any, chess_db, chess_db_match).
lib_index(chess_db_current, 1, any, chess_db, chess_db_current).
lib_index(chess_db_game, 1, any, chess_db, chess_db_game).
lib_index(chess_db_disconnect, 0, any, chess_db, chess_db_disconnect).
lib_index(chess_db_connect, 1, any, chess_db, chess_db_connect).
lib_index(chess_db_ids_pgn, 2, any, chess_db, chess_db_ids_pgn).
lib_index(chess_db, 2, any, chess_db, chess_db).
lib_index(pgn, 2, any, chess_db, pgn).