Problem description says the input can be a 9x9 matrix, but the test suite gives a 3x3 instead.
No 3x3 matrix in the description
3x3 for test
The second test case of matrix is not required..that never happens with sudoku. Only rows and columns should be inputs.
I've always wanted to create an algorithm to solve sudoku
neat & quick
This is really smart!
Looking at the test cases first will save lots of complications
Back to basics 21 - Matrix replicating
How to subtract?
Sum the numbers on the main diagonal
Square a Number
Right Triangle Side Lengths (Inspired by Project Euler Problem 39)
Lychrel Number Test (Inspired by Project Euler Problem 55)
Pig Latin to English Translator
Triangle Numbers Below N
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