Issler, Werner
4th Prize=, Probleemblad 104. TT, 1959
#2
9 + 4
6490 | yacpdb | 2009 |
This is a version of 42442
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
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