I send Harpers' puzzle in pdf format every month to syzygy.
He turns it into URL and posts here.
For the last 3 weeks, he has not replied to my emails.
I usually hear back from him within a day or two.
I sent him February puzzle last week. No response yet.
I hope his health is OK and he is just busy traveling Europe .
I do not know how to convert pdf to url.
If you know, I can email the puzzle to you.
Or describe the procedure here and I will try it.