Fun kata! But I have a question why in C# all kata seems to uses jagged arrays instead of multidimensional? (int[][] this instead of int[,]). I am genuinely curious because it seems to me more appropriate a multidimensional array in this case and in many others that I found... am I wrong?

I completed the kata my way... super happy.
I saw the top best practice... super depressed.
C'mon using magic is not fair...