Crad Kilodney–New Writings

Logic Puzzle: Psychoanalysis


The venerable psychoanalyst Dr. Frood, who specializes in dream interpretation, keeps office hours from 9 a.m. to 4 p.m.  He schedules six patients a day, beginning on the hour at 9 a.m., with the last appointment running from 3 p.m. to 4 p.m.  He takes his lunch hour either at noon or 1 p.m.  Today he had six patients scheduled — Amy, Fred, Gus, Helen, Richard, and Selma — but one of them was a no-show.  The other five related dreams about having an operation, being lost in a shopping mall, being chased, being a celebrity, and flying.  From the clues given, account for all seven hours of Dr. Frood’s day, and determine who related which dream.

1.  Three consecutive hours were accounted for, in some order, by Fred’s appointment, the patient who dreamed of being lost in a shopping mall, and lunch.

2.   Amy was not the first woman scheduled.

3.  The no-show was one of the only two patients of the same gender to be scheduled for consecutive hours.

4.  Five of the six patients are: Helen, the patient booked for 10 a.m., the patient who dreamed of being a celebrity, the man who preceded the no-show by one hour, and the patient who was scheduled two hours before lunch.

5.  Either A or B is true, but not both:

     A.  Fred dreamed of being chased.

     B.  Selma was scheduled for 3 p.m.

6.  A man scheduled sometime before lunch related the dream of having an operation.

7.  Helen’s appointment was later than Richard’s, which was later than that of the patient who dreamed of being lost in a shopping mall.

8.  A woman was scheduled for 11 a.m.

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