Well you have to solve 13 challenges, so it will take you some time to solve all of them :-)
You have several pieces on which a path is drawn and 2 filler pieces. The goal is to make a continuous path from the starting piece to the end piece by using all the pieces (sometimes you can complete the goal with less than all the pieces, but well, it just means you failed...) and the 2 fillers. Brian includes a paper with hints, which consists in telling you where to place these 2 fillers. But I am sure you will not look at the hints, will you??
Obviously you have 2 sides for each piece and then depending on the orientation of the piece, the path is changed. The initial design was with straight lines, but I feel this is nice to have these curves, and maybe it can confuse people, making the challenges even more difficult?
When I saw the puzzle, I thought it would be super (or too) easy, well....definitely not. This is challenging, and so far I have not yet solved all the challenges. This is not the common packing puzzle you're used to seeing and this is what makes this puzzle very interesting.
The quality of the puzzle is nice and Brian is a very friendly craftman, always replying to emails and questions, even if he is very busy....If everyone could be like him ;-)
The puzzle is still available HERE. I am sure Brian will be happy to sell it to you, but don't wait too long because the puzzles are sold out quickly! It's worth the money!