Difficulty Ratings
- Level 1 Difficulty - Beginner. These puzzle books and puzzle sheets are the easiest challenges. Containing no more than 12 puzzles, the detective has to simply solve the puzzles to eliminate suspects, weapons and locations until the solution is found.
- Level 2 Difficulty - Intermediate. These puzzle books contain extra suspects, weapons and locations. They also contain more puzzles than the level 1 books. All the suspects in the book have their own personal puzzles. The puzzle belonging to the murderer will be trying to mislead you by making you eliminate either the guilty weapon or the guilty location. Therefore you cannot trust the results of any suspect's puzzle until you have eliminated that suspect.
- Level 3 Difficulty - Super Challenge. These puzzle books have at least 10 suspects, 10 weapons, 10 locations and over 30 puzzles! As in the level 2 books all the suspects have their own personal puzzle and the murderer is once again trying to mislead you. But now, amongst the other puzzles, are two red herring puzzles that are also trying to direct you away from the correct solution. Finally, from amongst the information provided by the puzzles, you also have to discover the motive for the crime!