I hadn't spotted that the share links were no longer redirecting to the correct puzzle page. They now work again.
If you click the twitter or Facebook buttons at the top of the comments page for any free puzzle, you can share it (permanently) with anyone you like, and they can play the puzzle. The links look will like this: http://www.puzzlemix.com/share.php?id=84785.
If you click the twitter or Facebook buttons at the top of the comments page for any free puzzle, you can share it (permanently) with anyone you like, and they can play the puzzle. The links look will like this: http://www.puzzlemix.com/share.php?id=84785.
You can however view other players' statistics and comments in the tables above.