Article date: Nov 1969
Article title: A new pencil-and-paper game based on inductive reasoning [cover]
Mathematical Games column? Y
Book: 9. Mathematical Circus
Chapter: 4. Patterns of Induction
This data confirmed? yes
Notes
Peter Rowlett (27 August 2022):
Peter Rowlett initial guess (Very uncertain)
Peter Rowlett (2 September 2022):
I have seen copies of Scientific American Nov 1969 and Patterns of Induction in Mathematical Circus and these match.