Article date: Dec 1979
Article title: A pride of problems, including one that is virtually impossible
Mathematical Games column? Y
Book: 15. The Last Recreations: Hydras, Eggs, and Other Mathematical Mystifications
Chapter: 21. A Toroidal Paradox and Other Problems
This data confirmed? yes
Notes
Peter Rowlett (5 November 2023):
I have seen this chapter and column side-by-side and they match.