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Retail price: $37.99
Our price: $35.99

Ages: 8+

Grades: 3rd+

Availability: Usually Ships in 24 to 48 Hours

You'll earn 36 Doodle Dollar points.

Product Code: 160-162

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Another outstanding component of Timberdoodle's 2019 Fourth-Grade Curriculum Kit and Non-Religious 2019 Fourth-Grade Curriculum Kit!
Timberdoodle's Review
Sudoku, the numbers game where players fill each of the blank boxes in a puzzle based on specific rules, has received a makeover. Introducing ColorKu where the use of colors rather than traditional numbers makes ColorKu much more accessible to Sudoku novices, children intimidated by numbers, or just lovers of beauty. ColorKu will improve your child’s memory and logic and will require him to think strategically and solve problems creatively. The gorgeous playing board is solid wood, and comes with eighty-one wooden marbles in nine intense colors. The included dimpled-plastic tray pulls double duty as both a cover when ColorKu is not being used and as a ball holder while playing ColorKu.

Over 100 puzzle cards are included, with difficulty ratings from easy to challenging. Thankfully, the answer to each puzzle is also provided. And because you can readily convert any Sudoku puzzle into a ColorKu puzzle with the addition of the color conversion card, your child will never run out of challenges. ColorKu is such a visually-beautiful game you may find yourself leaving the game out for an impromptu game. We have found that it is perfect as an impromptu diversion for restless visitors whose parents are preoccupied. We fill the board; then, depending on the child's cognitive ability to handle challenges, remove an appropriate number of wooden marbles and let him figure out where the missing pieces belong.

You start by placing the colored marbles on the card onto your board then you have to fill in the rest. Use your logic to play by getting one of each color of marble in each of nine rows, columns and 3 x 3 squares without overlapping with the same color. Each puzzle has only one correct solution.

Please note: due to some very small pieces, this teaching tool could pose a hazard to children under three years of age, or any child prone to putting things in his mouth.

5 Levels of difficulty (Easy, Moderate, Challenging, Tough, and Extreme)

Solid wood playing board
81 Wood marbles in 9 vivid colors
104 Puzzle cards
Solutions booklet
Color conversion card - converts any Sudoku puzzle into a ColorKu puzzle!
Clear high impact plastic bubbled storage tray

Recommended Age: 8+
Number of Players: 1+
Manufactured By: Mad Cave Bird Games, LLC
Made in: China
Faith-based: No

CHOKING HAZARD - Small parts. Not for children under 3 years.
CHOKING HAZARD - Toy contains a small ball. Not for children under 3 years.
Colorku Review by So Every Day

review by So Every Day

”This is a great thinking, processing, analyzing, maneuvering game. And it’s good for every age. You can choose a harder set up or a simpler set up.”

Read the Review

Customer Reviews

Based on 17 reviews

Some of my children like this better than others. My daughter just plays with the colored marbles at 9. But my son who enjoys things more mathematical has had a great time trying to solve these puzzles. I think at seven he needs a year or two more but we will work at it together with both of them. My preschoolers just put the marbles in the tray lol and it is not meant for their age anyway.

Got it for my kids, but I use it instead!

My second grader isn't quite ready for this, but I found that I greatly enjoy using the game instead! He is excited that he will get to do it next year, and occasionally tries to help me out. It is much easier for him to see the colors than the numbers like in traditional Sudoku.


I love the ColorKu Game that I bought for my 9 year old daughter. It's a beautiful board with marbles that come in every color of the rainbow. I like that it is a hands on way of doing a Sudoku puzzle, and even adults can play. I recommend this game to anyone who likes Sudoku puzzles or if you'd like to introduce your child to Sudoku. This game is worth the money, since it can even be a one player game. We've been playing ColorKu all summer long, and enjoying the challenge that this game provides to stretch our brains.


This was and continues to be difficult for my nine year old, however, I love it! It presents a fun spin on sudoku.


Awesome product. My 7 year old loves mind games and really enjoys it. Was delivered fast

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