Bonus Socius
Source?, 1350
#2
3 + 2
14907 | Good Companion Chess Problem Club | 1914 |
887 | Mate in Two Moves | 1931 |
2012 | Miniature Chess Problems from Many Countries | 1981 |
5658 | Beispiele zur Ideengeschichte des Schachproblems (Josef Breuer) | 1982 |
3295 | Einfuhrung in die Welt des Schachproblem | 1984 |
3979 | Systematic Terminology | 1984 |
3310 | 2345 Chess Problems | 1997 |
5454 | Near Snap | 2007 |
This anticipates 4672(1886), 132734(1958), 11700(1971)
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).