Isaev, Leonid Antonovich
Neumann, J
De Problemist, 1927
#2
10 + 9
5454 | Near Snap | 2013 |
14868 | Pirnie Collection | 2013 |
This anticipates 146925(1931)
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).