From Newsgroup: comp.lang.prolog
Hi,
Lion and Unicorn: H|Nkan Kjellerstrand R.I.P.
By way of Neng-Fa Zhou:
I am deeply saddened to learn that H|Nkan
Kjellerstrand passed away on February 10. H|Nkan,
a dedicated professional software engineer, played
an important role in shaping the Picat language and
system from its earliest days. He wrote more than
a thousand Picat programs, and contributed countless
suggestions and bug reports. He also co-authored
several publications on Picat, including the book
"Constraint Solving and Planning with Picat". In
addition, he generously provided timely and thoughtful
responses to questions on the newsgroup. His passing
is a tremendous loss to the Picat community, and he
will be remembered for his contributions,
generosity, and passion.
https://groups.google.com/g/picat-lang/c/Vm0GcHMLEGY
Quite a loss, probably the only non-posh person in
the Prolog community and elsewhere, that one could
easily interact with and an amazing puzzler.
Bye
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