Dirty Dozen is a unique creation from the mind of Alfons Eyckmans. This is a burr puzzle within a burr puzzle. 12 exterior pieces conceal 4 more hidden pieces that lock the puzzle up. Many tricky moves are required to solve the puzzle.
Two of these puzzles were manufactured by the designer in late December 2011 and sold. One of the puzzles resides in Germany with Goetz Schwandtner the other with Aaron Davila in Texas, U.S.A.
- Dirty Dozen after 29 moves