On JigsawSite.com you can find many jigsaw puzzles, or turn your own images into such puzzles. Each puzzle is available in six levels of difficulty: from “easy” (6 or 9 pieces) to “insane” (135 to 225 pieces). You can play these puzzles on the site, but you can also insert them in your blog. Example (level 5, 108 pieces):
On wordpress.com blogs we cannot use regular embed codes directly: the code has to be converted into a working shortcode (for more on this, see my post on inserting flash).
So, to insert such a jigsaw puzzle, visit the site, select or create a puzzle, select the level of difficulty, then copy the code that shows up under “Embed puzzle directly on your blog or website” and paste it into a simple text file. Inside the “embed” tags you’ll see something like this:
Keep this part only, and delete all the rest. Copy the following model, and paste that part of the original code where I’m showing:
Paste the end result in the “Text” (=code) post or page editor. You can change the height, if you wish.