I've been taking a walk along the alley at the back of my flat.
There is extensive clearance going on at the back of several houses
in Delamere Street, from the old Nunnery to No.59.
It looks as though they may be planning to build something there.
I took the photo through a gap in the high fence.
The other photo is of a street light that is on at irregular times.
At night it shines directly into my bedroom window.
I did try a few years ago to get it moved but nothing happened.
I took a walk via Flag Lane and the Valley brook to Queens Park this sunny morning and took a few photos to cheer me up.
I seem to have forgotten about this diary page for a while. Probably I've been too distracted with hospital check-ups and appointments.
It was my 85th birthday early in February. It may be noted that 85 is a sum of two squares in two ways. It also has an interesting pattern in binary notation.
I've had one of the infrequent exchanges of messages with Prof Donald Knuth. He was interested in the E. W. Bennett problem of a circulating knight tour, which I solved with four symmetric tours, back in 1995. The tours are shown on the Knight's Tour Notes PDF #6 page 32.
Thanks to research by Arnaud Lefebvre (Rouen) it was possible to establish some biographical details: The original author was Edward William Bennett (1899 - 1979) who was President of the Otago Chess Club (New Zealand) in 1938 and champion there 1941, moving to Australia in 1945.
I've been trying to convert material on my website into books of some kind, possibly a series of "Guides" on various subjects. The problem with making a Guide to Knight Tours is editing down the material to a manageable form. It would be necessary to keep referring to the website for more extensive details.
