Washington Monument Wood Brain Teaser | Very Hard Math Puzzle for Adults
We 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 from middle school to high school.
A computer analysis by Dick Hess shows there are over 262,000 possible permutations of the cubes. There are only 9 possible solutions.
Ready to check out
Review the selected option and total at checkout.
Delivery to you
Allow time for the store to prepare your order before transit begins.
Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.
Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.
View policyTalking through a refund
Send the store your order number and the reason for your request.
Please contact us for the refund processing timeframe before returning an item.
View policyYour shipping options
Choose from the delivery options available for your address.
Standard Shipping · United States: $0.00
Express Shipping · United States: $3.99
View policyBefore you return a product
Check the conditions for your product before sending it back.
United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.
View policy