fixed

first test case is

[[1,2],[5,3]]

you may be seeing it wrong

https://www.codewars.com/kata/reviews/614e7711943f130001d0ae5d/groups/615d633012fd840001a0c064

fixed, thank you

These katas are proxy trap katas. My kata is based on time.

fixed but needs feedback

Fixed

I'm not sure that these are duplicate, why you think like that?

NxN matrix tests has been added

damn

I will add new kata for improved version of this question reverse finding 2x2 matrix so this kata will first part of the second kata

You can create random matrix with only 2x2 (upper-left) part. If I create 3x3 matrix with random, the question will broke.
Example:

[
  [1,2,5],
  [1,2,6],
  [1,2,7]
]

The value of (0,2) is false for the question definition.
Becase (0,2) value cannot be 5.

Because the first 2x2 part of matrix has the same pattern so the NxN matrix is meaningless. If you take NxN matrix as input, you can use 2x2 part of the matrix without looking the other values.

Restrictions removed