Einstein Tile Puzzle

As a puzzle maker, I was enormously excited when I read that a new tile format had been designed. It has quite unique properties, and for some background reading, I would head to this news link.

Anyway, I couldn't resist making a puzzle from it, and this one is a DOOZER. 

Seriously, it is super hard, some would even describe as gnarly, but it has a sweet pay-off if you have the patience to play with these tiles.

I've made it a free download, so head to this link to enjoy it.

No hints online - you have to email for a word nudge, or if you are really stuck, an image nudge. You'll get them in that order too!

First person to solve it gets a free chocolate bar.