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Programming Enigma Puzzles
From New Scientist #1820, 9th May 1992 [link]
Alan, Brian and Charles have surnames Adams, Brown and Collins (not necessarily respectively) and occupations of architect, builder and carpenter (again not necessarily respectively). Each of them is either thoroughly honest or thoroughly dishonest. Below are some statements (not necessarily by more than one person) which involve these three people’s names and jobs: (each blank space originally contained one of the surnames — Mr Adams deleted the names after seeing the first few statements):
(i) I am not the architect.
(ii) Brian is a carpenter.
(iii) Charles’s surname is [……….].
Mr Adams says:
(i) The architect’s surname is not Brown.
(ii) The builder’s surname is [………].
(iii) The two spaces contain the same surname.
The architect says:
(i) The builder isn’t called Charles.
(ii) It’s now possible to work out all our names and jobs.
Please state (in order) the [deleted] surnames.
If I’ve counted correctly there are now “only” 200 Enigma puzzles remaining to post. (Actually I think there are 196).