Hartong, Jan
Chess, 1937
#3
10 + 6
3147 | Chess Problems: Introduction to an Art | 1963 |
56 | The Problemist | 2017 |
After K. Hannemann.
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).