Fenner, A Jack
Kipping, Cyril Stanley
The Problemist, 1943
#2
9 + 8
There are these versions: 219183
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
CSS/Javascript (jQuery, Bootstrap & DataTables).