The requirement is for a WordPress plugin to be built which pulls a thumbnail image from the main site and shows on sites which have the widget installed. The thumbnails will need to be pulled from [url removed, login to view] and linked to the page with the URL of the page which the thumbnail was pulled. Example thumbnail would be [url removed, login to view]
User would install the plugin and in the widgets section, select to ether randomize the puzzles pulled or pull a specific puzzle umber (for example number 100 which would be rebus-100). The title (on widget page) which the admin can change. On the front end the widget will show the title, the puzzle, How To Solve Information, and link to the puzzle page from where it was pulled.
Any questions just ask.