Damian Cugley, 12 August to 24 August 2010
Enter a Flickr tag and choose a difficulty level and the app creates you a jigsaw using one of Flickr’s 25 most interesting photos with that tag (and compatible licence). The jigsaw pieces will snap together when you bring matching pieces together, and you can then drag the hunks of puzzle around as you work out where they belong in the finished picture. The trick is you don’t know what it will look like until you finish the puzzle!
If you like, you can enter an image URL of your own. Animated GIFs will work on some browsers, which is moderately amusing.
The competition page may not last forever, so you can also visit the app at http://jigsaw.alleged.org.uk/.
If you want to gaze upon the un-minified code, it is available on GitHub.