Creative Crafthouse

Half Hour Cube | Stewart Coffin 1975 Wooden 3x3x3 Puzzle

Half Hour Cube | Stewart Coffin 1975 Wooden 3x3x3 Puzzle - Main image
$14.76 $20.5 In stock

Half Hour Cube is a handcrafted wooden 3x3x3 cube brain teaser designed by Stewart Coffin in 1975. Coffin estimated a half hour as a good solution time. It looks like a Soma Cube, but where Soma has 240 valid solutions, this has only one.

Each puzzle is handcrafted from precision-cut hardwoods by Creative Crafthouse with Stewart Coffin's permission. Includes a base and cover for display and travel.

  • 3x3x3 cube format. One solution only.
  • Ships unsolved. Solution included.
  • Includes attractive base and cover.
  • Engrave a name, message, or company logo (up to 45 characters).
  • Browse more designs in the Stewart Coffin puzzles collection.

Made by Creative Crafthouse and shipped from our Florida shop.

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 policy
Talking 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 policy
Your shipping options

Choose from the delivery options available for your address.

Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

View policy
Before 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

Customer Reviews (5.0 / 5 · 2 reviews)

Adam N. ★★★★★

The interlocking joints fit together so satisfyingly that I lost track of time trying to reassemble it. It really does take about half an hour to solve, just like Coffin estimated. The wood feels solid and the pieces slide smoothly.

Sofia X. ★★★★★

The grain on the wood pieces is beautiful, and the way they interlock is surprisingly tricky—I spent way longer than half an hour on my first try. The satisfying click when the cube finally came together made it all worth it.