Washington Monument Wood Brain Teaser | Very Hard Math Puzzle for Adults Adult Mind Challenge There will be a variety

There will be a variety of different woods (at least 4) in each puzzle and woods will vary between each puzzle

The assembled pyramid measures 6" x 6" x 3

This 4 Row Shut box measures about 9” x 9” and each row has #1 - 10 with the numbers laser engraved for both beauty and long life

so the gift is a keepsake before it is ever opened

Caduceus Symbol

Washington Monument Wood Brain Teaser | Very Hard Math Puzzle for Adults Adult Mind Challenge There will be a varietyWe 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