These are examples of the Joomla component com_jigsaw. It displays the images in a selected folder as a jigsaw puzzle. The number of rows and columns can be set through the menu system, alllowing the difficulty level to be altered. You can have multiple versions of the component with varying difficulty levels.
The puzzle can use any folder of images on your site, so it is easy to add your own images to the game. Great fun for a site aimed at children - or grown-ups who like games.
Examples