Ekstrom, Sven Johan Adrian
1st HM., Tidskrift for Schack, 1944
#2
5 + 3
5862 | An ABC of Chess Problems | 1970 |
5454 | Near Snap | 2007 |
This anticipates 24935(1947), 22153(1962)
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).