Do you like to play sudoku? Do you prefer images over numbers? You may for this game. Picture sudoku lets you choose images from photo-sharing site Flickr with which to fill your sudoku puzzle. You can specify the tag and/or the user whose images you want to integrate into the game.
As you can see, the possibilities are endless.
The game also gives you a “blank” with which to erase placement of photos. If you are intrigued by a picture and want to see it in full size on Flickr then just click on the asterisk next to its name in the left-hand column.