School-Safe Puzzle Games

Ball Transformation Puzzle

Much Thanks to the International High IQ Society for this ball transformation puzzle:

What is the smallest number of red balls that must be moved to transform the red triangle into the green triangle?
ball puzzle

(Puzzle copyright (c) International High IQ Society)

Solution follows below:

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ball puzzle solution

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6 Comments to “Ball Transformation Puzzle”


  1. Aaron | Guest

    four


  2. James | Guest

    I agree, 4…unless you can just flip it, 0…or none if color is of importance(haha)


  3. Aaron | Guest

    I found out my answer is wrong. It is three.


  4. Cheesedude | Guest

    yeah it is three.


  5. Alfonso | Guest

    WOW!!! I was convinced it was 4 and now can see it’s 3… Soooo simple


  6. JFStan | Guest

    “What is the smallest number of red balls that must be moved to transform the red triangle into the green triangle?”


    The correct answer is 20. The 10 red balls have to be removed and replaced with 10 green balls to transform it into the green triangle.


    In order for 3 to be the correct answer, the description should read as follows:


    “What is the smallest number of balls in the red triangle that must be moved so its configuration matches that of the green triangle?”


    I love trick questions! :)


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