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I showed my Dad this solution and he went out for smokes
a good summary of a confusing line of code!
True and 1 are the same thing.
Recommend changing the wording on this kata. It should mention the ice cube is perfectly rectangular.
Funny how you need the Math module to use sqrt but not to exponentiate by 1/2. XD
I voted you for best practices because I think solutions should be READABLE and not just concise.
I suggest adding a test case where the first digit != the square of itself.
This comment is hidden because it contains spoiler information about the solution
Your kata is missing test cases.