I enjoyed this kata, but a lot of these issues seem to be derived from the "subsquares" category. In sudoku, there are 3x3 grids (or squares) for each square that also must not have any of the same numbers in that 3x3 grid. From what I've read, the tests don't check every square, so I would change that.

I would also recommend updating the kata description just so there are no further headaches from issues being raised from a misunderstanding (I understand that there is a wikipedia article linked to inform others about sudoku, but realistically not that many of us are going to read that). It'll just makes this whole message board a lot simplier imo.

I'm ngl I would expand this kata description a little more, but still a cool kata. :)

C translation

Good kata overall! Potentially should add some more random tests for JS so that multiple loops aren't used (this is a 7kyu, granted) but I liked it. :)