Article date: Aug 1983
Article title: Tasks you cannot help finishing no matter how hard you try to block finishing them
Mathematical Games column? Y
Book: 15. The Last Recreations: Hydras, Eggs, and Other Mathematical Mystifications
Chapter: 2. Bulgarian Solitaire and Other Seemingly Endless Tasks
This data confirmed? yes
Notes
Peter Rowlett (5 November 2023):
I have seen this chapter and column side-by-side and they match.