Tests are good! Try harder!
This comment is hidden because it contains spoiler information about the solution
Look the numbers in regions 3x3. In every region you have duplicate numbers:
ex. first region 3x3
1 2 3 2 3 4 3 4 5
As you can see 2,3 and 4 are duplicated, and there are not all the numbers between 1 and 9, so it returns 'Try again!'.
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Tests are good!
Try harder!
This comment is hidden because it contains spoiler information about the solution
Look the numbers in regions 3x3.
In every region you have duplicate numbers:
ex.
first region 3x3
1 2 3
2 3 4
3 4 5
As you can see 2,3 and 4 are duplicated, and there are not all the numbers between 1 and 9, so it returns 'Try again!'.