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IcoSoKu


List Price: $19.99
Price: $15.14 & FREE Shipping on orders over $35. Details
You Save: $4.85 (24%)
In Stock.
Ships from and sold by Amazon.com. Gift-wrap available.
  • An added challenge
  • Place the triangular tiles so that the dots touching a number button add up to that number
  • The entire ball can be solved every time, regardless of how the number buttons are placed
  • A fun way to teach and reinforce math skills
  • Sharpens critical thinking skills
40 new from $14.94 1 collectible from $13.99

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Frequently Bought Together

IcoSoKu + Perplexus Epic
Price for both: $39.15

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WARNING:
CHOKING HAZARD -- Small parts. Not for children under 3 yrs.

Product Details

  • Product Dimensions: 7.8 x 3.5 x 7.5 inches ; 14.4 ounces
  • Shipping Weight: 14.4 ounces (View shipping rates and policies)
  • Shipping: This item is also available for shipping to select countries outside the U.S.
  • Origin: China
  • ASIN: B003AIKTPU
  • Item model number: IC2869
  • Manufacturer recommended age: 7 years and up
  • Amazon Best Sellers Rank: #20,685 in Toys & Games (See Top 100 in Toys & Games)
  • Average Customer Review: 3.5 out of 5 stars  See all reviews (21 customer reviews)
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Product Description

Product Description

IC2869 Features: -Icosoku 3D brain teaser puzzle. -Icosoku is a mathematical masterpiece. -Position the tiles so that all of the dots encircling a yellow peg add up to that number. -Puzzle can be solved every time, regardless of how you the yellow pegs are arranged, so repeat play is endless. Gender: -Girl. Gender: -Boy. Category: -Early Development Toys. Minimum Age Requirement: -8 Years And Up. Dimensions: Overall Height - Top to Bottom: -7.5 Inches. Overall Width - Side to Side: -3.5 Inches. Overall Depth - Front to Back: -7.5 Inches. Overall Product Weight: -0.83 Pounds.

From the Manufacturer

The puzzle is a maddening addition. Place the number buttons randomly on the ball. Solve the puzzle by matching the dots to the numbers so that all of the dots touching a number add up to that amount. There are thousands of ways to play. It all adds up to fun - you can count on it.

Customer Reviews

I'll update my rating once I see how company handles this issue.
Kent A.
I was immediately impressed by the quality of the materials, the puzzle feels good in your hands.
Richard
So good to see him playing with something other than a video game!
Kimkey

Most Helpful Customer Reviews

10 of 10 people found the following review helpful By Boodleheimer on December 31, 2010
Verified Purchase
This is a great toy/game for anyone who loves Soduku, logic puzzles or things like a Rubik's cube. It is absolutely addicting!!!! We opened it up on Christmas Eve, and could not put it down. We ended up staying up most of the night working it out. And don't be fooled into thinking you'll figure it out easily, you won't. It's alot harder than it seems at first -- or tenth -- glance. Buy it and you will NOT be disappointed!
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12 of 13 people found the following review helpful By A. Math Professor on December 31, 2010
Pros: If you write down the positions when you first get it, at least you can return the puzzle to a solved state easily. It's fun to click the pieces in and out, even if you don't end up with a solution. It's visually very attractive. It makes for "family fun" over the holidays as everyone has their turn at not being able to solve it.

Cons: The tiles and pins actually don't all stay in their respective positions properly, ie, they can easily fall out in the usual course of playing with this toy. This makes the puzzle more difficult than it needs to be. Also, the numbers start to wear off the pins after just a few days. This toy is marked as ages 6 and up, but I would suggest ages 12 and up.

Unlike other puzzles where you feel as though you are making progress, this puzzle gives beginners the experience of rapidly moving from having all the pieces out - to having "all but one" piece back in, which is not the "correct" piece you were hoping for... but there is no intermediate feedback. I will have to play with it more to see what happens a few weeks into playing, but I can predict that the intense fun most people feel for the toy will wear off within an hour, and 95% of owners will not pick it up again. However, diehard puzzle-lovers will continue beyond this initial phase. I don't really understand the notion that it is educational (in the traditional sense), unless you do what a previous reviewer recommended and remove only the yellow pegs. However, I can't imagine a child who would refrain from pulling out the triangles.

In summary: Totally awesome puzzle for those who *really* love puzzles.
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13 of 14 people found the following review helpful By Ellen P. Lafleche-christian on June 3, 2011
Icosoku is a hand held sized ball that holds movable number buttons and triangular tiles. The round yellow number buttons range from one to twelve. There are twenty white triangular tiles that contain different numbers of dots in each corner. The idea is for you to match the white, triangular tiles so that their corner numbers add up to the round yellow number buttons that they surround. Each round yellow number button will be surrounded by five different triangle corners. Some of the corners are blank to make the number additions possible.

Regardless of where you place the little yellow round buttons, the puzzle can be solved which means there are thousands of combinations of game play. It's all in where you place the white triangular tiles. The ball is about five inches across and is the perfect size to hold in your hand comfortably. The tiles and buttons go in and out easily and stay in the ball securely once you snap them in.

The game uses math and logic skills which makes it ideal for both public schools and homeschoolers. It's fun to play and much more difficult than it sounds. It's totally addicting and I keep picking it up to play just a few more minutes to see if I can solve the puzzle. I manage to get almost to the end of the puzzle before realizing that the tiles are not in the correct places because there are no more tiles whose numbers add up properly. Icosoku is meant for ages 7 to 99 although I would think that a younger child might be frustrated in their attempts to solve the puzzle.
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4 of 4 people found the following review helpful By Scarlet Aubergine on January 9, 2013
Less than a week after Christmas, this educational toy is bagged for trash. After quickly solving the configurations, the entire ball came apart and is impossible to put back together. We have all tried.
The idea is good, however the design construction is poor. Don't waste your money.
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6 of 7 people found the following review helpful By I Heart Games on August 4, 2010
Verified Purchase
Icosoku is so smart! Great way to get kids focused on math. I love the way it can be played over and over again and it's always a new challenge.
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2 of 2 people found the following review helpful By Dan Bourque on January 18, 2012
Verified Purchase
I just received mine yesterday, and it arrived in a solved state. So, I only took out 5 tiles initially, just to see how difficult it would be if the majority of it were already solved, and it struck me just how difficult this puzzle really is! Now that I have removed all the pieces, I'm looking into a deep abyss of possible permutations. I believe their claim that all configurations can be solved, but there are just so many ways to start solving it that I'm overwhelmed by it.

Being a computer nerd, I decided to code an algorithm to solve the minimal pieces for any number of pegs. Is anyone else interested in this? If enough people are interested, I'll deploy my IcoSoKu Solver as a web application. I'm also hoping that, for each peg placed on the sphere, I could quickly calculate and display the number of possible solutions. As you'd drag-n-drop more pegs onto the sphere, that number would keep shrinking. Whenever I determine that only one tile can fit in a particular location, I'd reveal it.

Please let me know if you're interested in such a web app by commenting on this post. I'll update it with any progress I make. (This is just a weekends-and-evenings project for me, so I have no idea how long it will take me).
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