Half Hour Cube | Stewart Coffin 1975 Wooden 3x3x3 Puzzle

In stock, ready to ship

$20.50

Add laser engraving (+$4.00)

Difficulty: Hard

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Delivery and Shipping

All standard orders normally ship within 1 business day.

Custom orders normally ship within 2 business days.

Description

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.

Personalize it!

Add a personalized laser engraving to your puzzle or game.

Perfect for gifts
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Payment & Security

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Product Specifications

Dimensions: 2.5 × 2.5 × 2.5
Materials: Wood
Difficulty Level: Hard
Age Range: Seniors (65+ years), Adults (18+ years), Tweens (9-12 years), Teens (13-18 years)
Piece Count: 6
What's Included: Puzzle board (1), Puzzle pieces (6), Wood cover (1), Instructions and solution sheet (1)
Cognitive Benefits: Brain Training
Gift Occasions: Christmas, Birthday, Holidays, Corporate
Personalization Available: Yes
Puzzle Type: Assembly, 3D Cube
Category: Brain Teaser Puzzle
Availability: In Stock

Personalize It!

Did you know we can add a custom laser engraving to every puzzle and game? Well, we can. Add a personal touch to your gift with a name or message.

Personalized laser engraving

a puzzle being laser engraved with personalized text by creative crafthouse

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Customers praised this challenging brain teaser for its excellent craftsmanship and quality construction. The wooden puzzle features 6 pieces with unique shapes allowing only one solution. Shoppers noted it provides hours of engagement, with one saying it "took me hours to figure it out." Reviews consistently highlighted "well made" quality and "very fast shipping."

Shipping (positive)Attention (positive)Puzzle (positive)Quality (positive)Brain (positive)

5 stars: 14 (100%)
4 stars: 0 (0%)
3 stars: 0 (0%)
2 stars: 0 (0%)
1 star: 0 (0%)

A great variant of the soma 3x3x3 type puzzle. The total number of pieces is 6 rather than 7, and the different shapes means that there is only one correct solution. It took me hours to figure it out. Great way to work out the brain!

My 10 year old grandson is obsessed with this puzzle. Hasn’t solved it yet. Finally.. he’s stumped on a game that will hold his attention.

Great quality, and met our expectations!

Half Hour Wood Puzzle | Challenging Brain Teaser

Amazing puzzle! Very fast shipping.

Half hour is about right :-). Fun and well made.

I love this puzzle. Well made. Top quality.

very well made, also it hurt my brain!

I made a mistake when I ordered this item. The seller bent over backwards to help me make it right! I have already placed a second order with this shop! The best part, it allowed my son to practice and took first place in his division at the district level :)

tolles Puzzle sehr schwierig obwohl so wenig Teile.

thanks heaps for this and the little itty bitty block puzzle that none of us can do!!!!

Fast shipping very well made

Exactly what I was looking for- and it shipped very quickly. Thank you!

Thanks for expediting delivery

Frequently Asked Questions

What is the Half Hour Cube?

A handcrafted wooden 3x3x3 cube brain teaser designed by Stewart Coffin in 1975. Coffin estimated a half hour as a good solution time.

How is this different from a Soma Cube?

Looks similar, plays very different. Soma has 240 valid solutions. The Half Hour has only one.

Who is Stewart Coffin?

Stewart Coffin is one of the most respected names in mechanical puzzle design. Creative Crafthouse produces faithful reproductions of his work with his permission.