This was one of Alexanders entries into the IPP Design Competition. I think this one will keep you scraping your head for a while. This puzzle comes with quite the "AHA" moment! Simply arrange the 3 pieces to simultaneously form the numbers 1, 2, 3 and 4.
Since this puzzle consists of over 70 pieces of wood, it will only be available for preorder. I have several completed and more on the bench and enough wood to make any extras ordered. The Camphor wood closely resembles maple.