From the NannyMUD documentation

LAST CHANGE

2005-09-15 by Gabe

FUNCTION

NAME
        query_puzzle - Has the player solved the puzzle?


LOCATION
        In /obj/player.c through /obj/puzzle.c.

AVAILABILITY
        This function can be called by any object.

SYNTAX
        int query_puzzle(string puzzle_name)

DESCRIPTION
        This function is used to test if a player has solved a given puzzle.


RETURN VALUES
        True if the player has solved the puzzle.


NOTE
        Do not call this function for the purpose of testing if you should
        call set_puzzle. Call set_puzzle directly instead and test the return
        value of that call.


SEE ALSO
        set_puzzle in lfun/player/set_puzzle