SBD wrote:
There are actually several possible fixes, the first one I thought of
was legal but only retained one solution, the other retained both but
was an illegal position (yikes!!), and Jose found one that worked, but
was uneconomical. Finally, I found a simple, legal , economical fix.
Given how that fix is so simple - and given Howard's prowess as a
composer - I still wonder if the original problem was correct, and one
"bit" was simply left off the diagram in the book's reprint of the
problem. One of my UK friends is visiting the archive where all British
newspapers are kept, can't remember the name but its in Colindale.

That would be the British Library. Their newspaper archive is in
Colindale.

That is one of the beauties of the computer - you can answer questions
quickly for yourself also like "what is that black bishop doing on h8"
by removing it and seeing the cooks that sprout up.