Article date: Feb 1970
Article title: Nine new puzzles to solve
Mathematical Games column? Y
Book: 9. Mathematical Circus
Chapter: 11. Eccentric Chess and Other Problems
This data confirmed? yes
Notes
Peter Rowlett (27 August 2022):
Peter Rowlett initial guess (Very uncertain)
Peter Rowlett (30 October 2023):
I have seen this chapter and column side-by-side and they match.