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They seem to be hopelessly locked together
irregardless of operation priority
It was a system primarily used for flag signals where there was a line of sight or for encrypted morse code messages
played by sailors on the old wooden ships
Washington Monument Wood Brain Teaser | Very Hard Math Puzzle for Adults canoga They seem to be hopelesslyWe 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