The second vertical has two 3's and no 8's, for example:

     [[5,*3*,1,6,7,8,2,4,9]
      [6, 2 ,4,1,9,5,3,7,8]
      [7, 9 ,8,2,3,4,1,6,5]
      [8, 1 ,2,4,6,5,7,9,3]
      [4, 6 ,9,8,7,3,2,5,1]
      [7,*3*,5,1,2,9,4,8,6]
      [1, 6 ,9,3,5,7,2,8,4]
      [2, 7 ,8,4,1,9,3,6,5]
      [3, 4 ,5,2,8,6,1,7,9]]

In fact, I think all columns/verticals are having duplicate numbers.

please add correct randomizer transformations, like in the JS version

Random test generation was influenced by user defined functions on Array.prototype. This has now been fixed.

based on the katas DrDesten solved and the error message, this could be JS

I could solve it, so it really cannot be 3 kyu

LOL 😂 kill me again!

well done you!

How could it not be?

Because this is Chad code

I mean yeah but thats kinda the point of this kata lmao

keep coping

funny, but voting "best practice" is plain stupid

lol