Logic Problem Solution:
A Logic Problem for Christmas, 2001: Santa's Shopping Proxies
By clue 1, three of the elves assigned by Santa to get gifts for Mrs. Claus are Dweedle,
the one who is to shop in New York, and the elf who is to get her a new bathing suit.
Neither Dweedle (12) nor the elf shopping in New York (3) will get the Tivo television
recording system, so the elf who is to pick up the Tivo is the fourth to the three in
clue 1. Similarly, neither Dweedle (8) nor the New York shopper (3) is to buy Mrs.
Claus a new motor scooter; so, the elf who will get the motor scooter is the fifth
one. Dweedle and the elf shopping in New York are to get the Palm Pilot and the
Mexican cookbook or vice versa. Arvid then isn't the elf who will buy a present in
New York (2); nor is Fred or Ule the New York assignee (7). Ozz will shop in New York
and will get Mrs. Claus the Mexican cookbook (9); Dweedle is to buy a Palm Pilot.
By clue 5, Arvid is to shop for a Tivo. Ule's assignment is the motor scooter (11),
and Fred's is the bathing suit. Neither Arvid (6) nor Dweedle for the Palm Pilot or
Ule for the motor scooter (10) will shop in Rome; Fred will do Santa's shopping in the
Eternal City. Dweedle's city isn't Tokyo (4) or Rio de Janeiro (12) and is thus
Moscow. By clue 12, Ule will buy a motor scooter in Rio de Janeiro; and Tokyo is
where Arvid will look for a Tivo. Santa's elves will be proxy shoppers for gifts
for Mrs. Claus as follows:
- Arvid, Tivo recorder in Tokyo
- Dweedle, Palm Pilot in Moscow
- Fred, bathing suit in Rome
- Ozz, Mexican cookbook in New York
- Ule, motor scooter in Rio de Janeiro
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