Pay in 4 interest-free payments of $3.99 Learn more
Ships within 48 hours · Estimated delivery Aug 22 - Aug 27
Every box ships with a printed instruction and solution sheet
copyright 2016 Creative Crafthouse
Use it as an engaging game for your home
irregardless of operation priority
played by sailors on the old wooden ships
Washington Monument Wood Brain Teaser | Very Hard Math Puzzle for Adults canoga Every box ships with aWe got the idea for this from Jerry Slocum and Jack Botermans "New Book of Puzzles". The puzzle dates from the 1930's and we tried to copy the old design nearly identically as pictured in Jerry's book. The object of the puzzle is to get all 4 sides to add to 555, the height of the Washington Monument! Each of the cubes will rotate on the internal post. A great challenge for the math inclined as it is VERY difficult. It might make a good class project
